Just a note on the climate science that might help here. We aren't facing a binary outcome. Our actions now, even small ones, have tangible effects on the outcomes we face in a highly non-linear way.

The FF (and meat) industry absolutely want you to feel that you have no agency and no amount of change will not make a difference so may as well give them your last lot of money as you settle for a worse (if any) future. Its absolutely not inevitable, other futures are possible. Avoiding the very worst is the difference between all out collapse of human and earth systems and a situation where things gets dicey for a while but one we can recover from. I know it can feel bleak and trigger the reaction you are talking about but the best solution to that is to pick up a shovel and start helping. There's so many ways to do that doing small but easy changes to your personal consumption is a good start. The best are those you do collectively with others as it multiplies your impact and gives you tangible resiliance networks for the changes that are coming.