Holy fuck thank you for this. Thought I was gonna go bald tearing my hair out from all the absolute dumpster fire takes in this thread. I'm just gonna expand on it a bit from a STEM angle (yes I know, how awful) to show just how ridiculous the overpopulation arguments.

There is technically a cap on earth’s carrying capacity for humans, but that cap is in the dozens of billions.

Technically, the only real fundamental limit is waste heat. These caps are in the trillions (if not higher), yes just with the resources of the Earth, no asteroid mining or whatnot. Doesn't even require super magic tech, it can be done with things we know for sure that we will be able to do in the very near future--assuming we don't kill each other of course. Every limit you can think of can be circumvented with enough energy, which if you have fusion (no, the jokes of it being always 20 years away aren't funny--funding was cut when they realized it was actually possible and would decimate the fossil fuel market) is only a problem of scale not some fundamental limit except waste heat of course.

Capitalism’s allocation of these resources and ability to fetishize commodities is what is destroying our planet

The tragic thing is that most of the technology/solutions for climate change and environmental degradation already exist or just need to be developed to scale. But because they aren't 'profitable' they aren't utilized. Hell even most fossil fuel emissions could be drastically reduced (on the order of 90%) if we mandated refineries and power plants actually deal with their waste exhaust instead of just dumping it into the atmosphere but again this isn't maximally profitable so its not done to any real meaningful extent in the grand scheme of things.