You straw man the position and say following the conclusion of the straw man, humanity must end based on their logic.
Ok, what straw man? I've talked about it on the individual level and also in case such ideology spreads, there is literally people that advocate for the end of humanity on the antinatalist ideology, I do not follow it closely to be able to say if it is a big part of it or not, but I've seen it before and seen the stance getting praised and this is extremely dangerous. I'm not making this argument because of the possibility it might happen, being realistic it won't, but because it just helps spread bullshit that blames everything on humanity itself like we are inherently bad.
How isn’t having kids selfish? You’re not having a child for this child’s sake. You’re having the child for your sake.
That makes no sense to me, deciding to birth another human being and dedicating your life to them is the opposite of selfishness. Of course not everyone is like this, and people that just makes children and doesn't give a shit about them are selfish, but the act itself is not.
I agree, I was exaggerating for the argument because I think antinatalism as a whole is dangerous, not for the made up scenario of humanity going extinct, but for the eugenics/fascism side.