Daenerys destroying Kings Landing and burning civilians was not true to how she would actually behave

• In season one episode six, Daenerys watches without remorse as her Dorthraki Husband, Khal Drogo, murders her own brother by dumping a pot of molten gold on his cranium even when he (Viserys) pleads to her to have her husband spare his life. Even when prompted to look away, Daenerys does not, remarking only after her brother's death, "He was no dragon; fire cannot kill a dragon."
  
• In season one episode 10, Daenerys has Mirri Maz Duur burned alive at her husband's funeral pyre. Granted, Maz Duur was responsible for her husband's catatonia and her son's being stillborn, but she states in the episode that she would hear Maz Duur scream, and has no other desire but to take her life.
  
• In season two episode four, when the council of 13, charged with the governance of Qarth, initially refused to allow her and her Dortharki hoard into their city, she states even when cautioned not to, "Thirteen! When my dragons are grown, we will take back what was stolen from me and destroy those who have wronged me! We will lay waste to armies and burn cities to the ground! Turn us away, and we will burn you first!" The Spice King, one of the thirteen, remarks "Ah, you are a true Targaryen." It's important to note that Daenerys in this situation cannot justify how the thirteen have "wronged her." Dorthraki hoards are quite notorious for sacking, pillaging, murdering and raping. It's quite prudent (and expected) that the governors of Qarth would turn her hoard away. Nevertheless, she still makes the threat.
  
• In season two episode 10, she has Xaro Xhaon Daxos, the council member who vouched for her locked in his chamber along with Doreah, a member of her hoard, to suffocate and/or starve to death. Granted Daxos did help Pyat Pree capture her dragons, and Doreah did murder Irri, but the point of my mentioning this is that her body count is not about justice, but revenge.
  
• In season three episode four, she has her dragon, Drogon, burn master Kraznys mo Nakloz after agreeing to trade said dragon to him for his unsullied army. Granted he was a slave owner who bred castrated soldiers, but she did break faith and murder him nonetheless.
  
• In season four episode four, she has the master crucified. Even when Barristan Selmy, a member of her queensguard prompted her to show mercy to them, she responded "I will answer injustice with justice." It was clear that her "justice" was just revenge.
  
• In season four episode six, she meets with Hizdar no Loraq in the Mereenese pyramid, where the exchange goes as such:
  

1. Hizdar no Loraq: my father, one Mereen's most respected and beloved citizens, oversaw the restoration and maintenance of its greatest landmark--this pyramid included.
   
2. Daenerys Targaryen: For that he has my gratitude. I should be honored to meet him.
   
3. Hizdar no Loraq: You have, your grace. You crucified him. I pray you'll never live to see a member of your family treated so cruelly.
   
4. Daenerys Targaryen: Your father crucified innocent children.
   
5. Hizdar no Loraq: My father spoke out against cruficifying those children. He decried it as a criminal act but was overruled. It is justice to answer one crime with another?
   
6. Daenerys Targaryen: I'm sorry you no longer father, but my treatment of the masters was no crime. You'd be wise to remember that.
   

• This is very telling. This demonstrates that Daenerys murdered the masters indiscriminately, without so much as investigating their crimes. Furthermore, Hizdar's comment about hoping that she'd never live to watch a member of her family treated so cruelly is ironic given the previous occurrence with Viserys.
  
• In season five episode five, after Barristan Selmy's death, she gathers the leaders of the great families of Mereen and brings them to where she had kept her dragons. She had one of said masters proceed forward, where he would be burned and bifurcated by her dragons. She then states, "Who is innocent? Maybe all of you are; maybe none of you are. Maybe, I should let the dragons decide." Once again, this is very telling. This conveys that she is not sure of their guilt, and decides to murder them anyway. When she attempts to use the death of one head of family to intimidate the other, in this case Hizdar no Loraq, he defiantly states "All Men Must Die." This causes Daenerys to recoil and remark that she doesn't want her dragons overfed.
  
• In season six episode four, she murders the Khals, who hosted her, in a hut after tipping over the braziers. It's interesting to note that these Khals neither caused nor initiated any harm toward her. She murdered them because their religion demanded that she join the Dosh Khaleen. She murdered them in Vaes Dorthrak, a religious land where blood is not allowed to be spilled--a custom with which she was very familiar given that she was Khal Drogo's Khaleesi.
  
• In season six episode nine, she mounts one of her dragons (Drogon) and proceeds to burn the slave operated ships with the slaves on board in slavers bay. (It was made clear in this episode that the masters of Yunkai and Astapor were financing the Sons of the Harpy.) In this episode she does not give the slaves a chance to desert, but indiscriminately burn all of them alive.
  
• In season seven episode five, Daenerys has her dragon burn Lord Randyll Tarly and his son Dickon (Samwell Tarly's father and brother) alive because the former refused to bend the knee, and the latter refused to leave his father alone.
  

Jorah Mormont: Taking this city will not bring you any closer to Westeros or the Iron Throne.
Daenerys Targaryen: How many slaves are there in Yunkai?
Jorah Mormont: 200,000, if not more.
Daenerys Targaryen: Then we have 200,000 reasons to take the city.

From Game of Thrones – Season 3 Episode 7: ‘The Bear and the Maiden Fair’

Literally every example you just gave is someone who deserved what they got.

Are you seriously going to equate killing slavers and not caring when her horrible abusive brother gets killed after he threatened to carve her son out of her womb while poking her with a sword with burning thousands of children?

Give me one, single example in all of the series of her mercilessly and needlessly killing someone who didn't deserve it in all of GOT,

the first time she did was when she killed Varys

The only example you gave which was halfway reasonable was from season 5 episode 5 when she killed the heads of some noble families who all supported slavery and class based elitism.

Deserving to die is the norm for men such as them, and if any one of them was a good person it would have been a rare fluke of probability.

now here is an  example of who Dany really is, and why she commits these seemingly "mad" killings of scumbags who deserve it.

Jorah Mormont: Taking this city will not bring you any closer to Westeros or the Iron Throne.

Daenerys Targaryen: How many slaves are there in Yunkai?

Jorah Mormont: 200,000, if not more.

Daenerys Targaryen: Then we have 200,000 reasons to take the city.

From Game of Thrones – Season 3 Episode 7: ‘The Bear and the Maiden Fair’

She may have caused casualties at times purely out of necessity, but she was never the type of person who would needlessly kill slaves or civilians.

Keep in mind what I said in round one, when Drogon killed a single child (the daughter of a Miranese goatherd) Daenarys locked her dragons away and all but dyed her hair black and started cutting. Are you telling me that same person would murder thousands of men, women and children and feel no remorse?

If the showrunners are going to go there the least they could do is create an actual reason for it, instead they had miss "free everyone from oppression and can't stand to see a single dead child" transform into miss "murder every child in sight and be proud of it"

just because Jon wouldn't give her the D, her friend got killed by one particular evil cunt which has nothing to do with the children she burned, and because a few very specific people, none of which are the children she burnt, were disloyal to her.

and if Daenarys was Jon Snow (Or even just herself as George wrote her to be) she would have stabbed herself just as he did for murdering thousands of innocent people.

1. My opponent has made the argument that Daenerys's actions in the penultimate episode of Game of Thrones is inconsistent with her character. This is not the case. As I've demonstrated, her murderous tendencies go as far back as season one. Over the span of eight seasons, she has callously watched as her own brother is murdered by her husband, burned Mirri Maz Duur alive, threatened the council of Thirteen (Qarth) when refused entrance, locked Doreah and Xaro Xhaon Daxos in a vault to suffocate and/or starve, burned and crucified slave masters, murdered innocent Meereenese nobles, mudered Khals who had not harmed her, and killed Lords and their heirs who wouldn't submit to her. Clearly, her burning down Kings Landing in the second to last episode is consistent with her past actions; therefore, said actions are consistent with her characte
   
2.  My opponent is clearly projecting by measuring Daenerys actions against that which he "would do
   
3. My opponent doesn't have a problem with her being a murderer. He has a problem with whom she has murdered.