It's a simple problem:
Either capitalism, particularly extractivist fossil fuel capitalism, goes, or a planet that can support 8 billion + people does. There is no third option, and yes, the rich people, including the political class they have bought and own, have already picked capitalism.
Fight, or die. Revolution, or extinction. Maybe you can win without violence, but don't pretend the other team has any qualms about force, fascism, and murder to keep their power. They tell you so every day