I agree, stopping at 1.5 C is extremely unlikely. You have to get worldwide agreement to do very hard things. I see little appetite for that. I also don't see any way to make it less hard, though if there is any hope that's where it lies.
There's going to be a lot of moving away from oil - because refining sludge from the ground and transporting is expensive compared to the competition.
Also... there's a heck of a lot of Nuclear Fusion research going on where I live. I wish them well!
*I do care, but it's in the abstract. I kinda like not living in an ice-age. Normally, the land where my house sits is under 1.5 miles of ice.