Talked to a very smart person this afternoon who reminded me: climate fatalism ("it's too late") is a soft form of denialism.

Everything we do from here is worthwhile. It counts, it makes a difference. No matter what damage has been done, we can still make things better than if we had done nothing. We can still look after the world, look after our friends and family. Action has results.
@stephen Yeah, but if i decide not to take the car today, the apocalypse might be delayed by 4 microseconds.
@11110110101 I'll just copy and paste my reply to someone else:

When I say "action" I am not thinking about reducing personal carbon footprint*, but doing our best to influence government and other large actors, and to influence others to do the same.

*although that can be a way to signal to other people that something is important and to signal that if they care they are not alone.