I share your feelings there regarding the choice or lack thereof with being born and seeing some of the points of antinatalism.

I don’t think that community fully understands what antinatalism should be. Casually browsing it though, it seems more like they’re more going towards eugenics than an actual antinatalist approach - i.e. applied to everyone, nondiscriminately, for reasons of morality (choice vs forced into existence, overpopulation and its ties to resource allocation and requirements and such). Arguably some posts there could be reasonably expected from non-antinatalist people, the sort of ‘if you can’t afford to raise them, don’t have them’.