Want to make a bet? I jest, obviously, since neither you nor I will be around to see how this all plays out in the end, but I am serious in my assertion that regardless of what lies ahead, humanity will not become extinct on the basis of climate change alone. That's the worst sort of alarmist defeatism. You've basically given up ahead of time, before the real struggle has even begun.
You do you, but I am not done fighting and am not about to admit defeat and retire into self-fulfilling capitulation. I don't want to accuse you of cowardice, but in some ways that's kind of what I see.
The German equivalent of JustStopOil is called the Last Generation (or letzte Generation). The official name is like the last generation that can hold up climate crises, but the implication is clear