I'm not antinatalist myself, and actively disagree with the premise but it isn't a new philosophical concept, and isn't an inherently violent philosophy.

If we shut down every community that had concerning elements or fringe extremists we likely wouldn't have online spaces like Lemmy in the first place.

At least this way I can set clear rules against advocating for violence and put a clear stop to the more extremist efilism content from leaking in. Or admins can close it and we can be done with the matter.