About vegans using against antinatalism the same point that carnists bring against vegans is absolutely true. I've seen vegans literally appeal to nature just like carnists to justify procreation ... Absolute clowns. As if they lose all of their ability to argue logically as soon as the topic changes. Just like lefties who against veganism but will speak against injustice in every other situation.

Vegans lose all ability to think critically. My favourite is "but we need more vegans and that's why vegans should have kids"...pretty sure most of us didn't come from vegan parents. My good friend in Calgary worked with someone who was raised on a sanctuary with vegan beliefs. He now calls himself a loose-moral vegan consuming non-vegan foods and wearing canada goose. And this isn't an isolated incident either. But yes, let's pop out more humans and gamble with animals' lives while also taking the risk of someone contributing to a system you are actively trying to dismantle. Total clowns, honk, honk. And yes, the non-vegan leftists are just as cringe. They blame the corporations and use indigenous culture to absolve themselves of any accountability.

"but we need more vegans and that's why vegans should have kids" Exploiting their kids, other sentient beings, as a means to an end, without obtainable consent. And they claim to be vegan?

It is perfectly fine (according to vegans and animal rights activists) to reduce the suffering of animals but it is perfectly unacceptable to reduce the suffering of humans by stopping breeding, aka by stopping imposing on innocent souls, against their will, without their consent/permission, a lifelong of exploitation (from all points of views), suffering and finally: DEATH.