I mean I understand that people are racist pieces of shit and will attempt to hijack absolutely anything that exists to pervert it into a mechanism of hate. But like.... We can could at least try to better the world.
I think that not having such a massive population devouring the ecosystem would be beneficial in the long term. That can be affected in a multitude of ways but mostly by getting the people alive right now to manage their consumption. Once the "line go down" from that, the generations long dastardly project of ...checks notes...educating people and providing them with medical care as needed, the population will in all probably go down as a matter of course.
I agree, they are struggling under capitalism. But a shrinking population doesn't necessitate suffering. At least not any more, where we could provide for our elderly with great efficiency if we were inclined to do so. It would not turn a profit, but some things are important in life.