I find it frustrating that atheists - choose not to give a reason
If an atheist makes a claim then that atheist has a burden to prove their claim. But since atheism isn’t a claim, there is no reason atheists would carry such a burden to give a reason for anything other than why your claim do not have any merit, which they do, all the time.
I also suspect that it's really a copout. Most secular atheists I know - hold almost identical worldviews. Yes, there are differences. But so what? That is the case with every religion and worldview.
The commonality amongst all theists is that they believe in a god. Anything beyond that might fit into theism, but is not itself theism. So it would be just as egregious for atheists to attack theism for things that not all theists accept as it is the other way around.
The differences matter, because group labels are defined by their commonality. It would be silly for me to attack the pro life position because of their opposition to contraception, while disregarding the fact that opposing contraception has nothing to do with the pro life position and many pro lifers are even ok with it.
This is what you are doing with regards to atheism. If you have a problem with the worldview most atheists seem to hold then why not start a thread on addressing your disagreements there? Why not ask atheists to tell you what they believe and why do you can just knock down their claims?
I don't agree we can compare it to what woman want. That's a false dichotomy.
The point is that there is nothing all women want because the only thing that makes one a woman is however you are defining a woman (vagina, chromosomes, whatever). So to attack women for wanting thing X is wrong because you are attacking those women who do not want X as well. That is perfectly analogous to atheism because there is nothing all atheists believe. There is one thing all theists believe though, because that is how the word is defined.
Atheism is apparently some kind of response to theism, yet all theists see their religion as a worldview.
That’s part of the problem. Theism isn’t a worldview, your religion is. So an atheist would be just as wrong to conclude that they defeated theism by defeating the claims of your religion as any theist is attacking atheism because of some perceived defeat of an atheist’s worldview.