I would argue that the problem you are pointing out is cultural rather than biological. Humans are very well capable of living sustainably and respectfully and have done so for extended periods of times in different regions of the world. The endless consumtion of an ending earth seems like something that developed together with (e.g. western, capitalist, …) culture and ideology.

We need to work on changing our collective mindset rather than attempt our own disappearance. Second part of argument: I believe we can. Humans are very capable to adapt and change. Not sure about collectives, but if you think you can convice a critical number of people to stop reproducing, I think you can do the same in convincing us to please fix our shit.