You are correct that collapse is likely inevitable and we are seeing it now. What can we do? This is my offering from a psychological and spiritual perspective. https://amichen.medium.com/finding-lightness-of-being-in-the-midst-of-climate-chaos-ce72ddaa7709
Also, Jem Bendell (University of Cumbria) has been speaking to and organzing around this for some time now, very well.