Okay? We have the ability to make decide on morality whereas a monkey nor a fish can't due to how easy it is for certain humans to survive. If you want me to be more clear then I am specifically talking about humans.
Surviving is hyperbole, clearly you didn't grasp the analogy. Let's say you're a math genius and I'm a biological fanatic particularly interested in herbology. Put me in a situation where herbology and math need to be combined in a very complex way to invent, investigate or describe (in a scientifically in-depth manner) and without your strengths and mine put together we'd be a flailing fish and monkey. Now, let's say I'm better with women while you're better at making food and we're roommates. You be my wingman, I be the assistant to you in the kitchen and it's double trouble at home that night if we go out, right place right time etc. ;)
There are not real positives or negatives in terms of 'good trait' or its counterpart in life. Everything is about context. A psychopath is one of the best people to help you take on a psychopath. An empathetic dependent person is a fantastic support to you in a way the psychopath can never be but is useless in such a conflict. Everyone has times when there exact strengths in one way are weaknesses in another.
Let's say you have a playstyle in a game that's quite nuanced, it would have to be in order to go down as legendary or great... Yet, all the most shit playstyles are also just as nuanced. A few updates and patch alterations later, your main character and way of playing go from most overpowered to most nerfed... Now are you going to shine?
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Can you make the link between the negative value of birth and wanting to commit suicide or assisted suicide?
While you can support abortion and say 'but my parents didn't abort me or weren't able to and it's whatever now.' as a gelling of the hypocrisy of being pro-choice and wanting yourself to have been born, you can't be anti-natalist and not hold in contempt, whether you forgive or not, your parents for having had you and society for wanting to carry on and brainwash us in the media to marry, love and raise children as happy families etc.
There is only one scenario where it's true, which is if we have cured ageing with enough people alive such that we've evolved beyond the actual mechanism of evolution... Reproduction.
No one's dying, do we need new humans anymore, especially if we don't live on Mars or have any other landspace than Earth to fit inside in and use the resources of? No. We'd be killing everyone or making things terrible for all by having children after the cure for ageing becomes attainable to the masses, if they are having children without being an 'opt-out of immortality' type.