how i see it is that while i do agree that the suffering we experience far surpasses our pleasures, i don't really support anti-natalism because of its lack of practical application.
Don't get me wrong, I really like it's philosophical implication, you shouldn't have kids if you're aware that you aren't capable of getting them through their vulnurable phase, you shouldn't have kids if you're uncapable of offsetting the effects the genetic maladies you might pass down to them on their lives, you shouldn't have kids unless you're well versed on how to raise a kid to be best fit for the environment they find themselves in. in short, you should consider put how the child might feel before you conceive them, and be ready to accept it if they deceide to forsake this gift which you bestow upon them, only a bully forces a person to eat a slice of cake after it is rotted or starts to taste of fermentation.
but then again, there is no practical way to achieve complete anti-natalism, even if voluntary extinction were to be achieved, which is extremely unlikely to happen almost impossible, people will procreate no matter how much effort everyone puts into preventing it, it's in our biological hardwiring. but if it does, the most we will do is set up the stage for another sapient species to take our place, our biological niche, effectively restarting the game. those species will have to contend with another version of history which is most likely, just as, if not more miserable than what we had and we have to contend with throughout our time.
it is best if we continue our existence, and change our socio-economic status our social arrangement and cultures to be more welcoming to those who choose to live, and accepting of those who choose to die, i made another forum discussing this topic in a bit more detail:
https://sanctioned-suicide.net/threads/some-thoughts-about-life-as-it-currently-stands.109163/
to conclude, i don't think misery is inherent to our human experience, it's only made to look like that by those who fund our education of our histories to maintain the social arrangement that puts them in power. our misery is caused by our socio-economic setting our current material conditions, a state that is very recent in our history.
it's best if we put our efforts into changing our social arrangement to be more humane, more egalitarian and just, instead of letting the people who serve to maintain our misery go unchecked.
Thank you for reading!! go and see my other forum for more details