I joined the Kansas City Food Not Bombs eight years ago and it has been life changing. They do great work, of course, but it has also connected me to so much other activism in the area and helped me build a community. I was so hopeless and atomized before joining FNB and learning about mutual aid.
I agree that we can support everyone on earth if we change our social, economic, and political systems.
I also think it is good that voluntary population decline is already happening and seems likely to continue in many industrialized nations.