> Once voters realize that this would take personal cost for benefits they won't see in their lifetime, I can't see them willfully voting for any substantial reversal.

Luckily renewable energy is getting to the point where it actually saves money over fossil fuel based energy. People might be loathe to move to electric or fuel cell vehicles, but costs are coming down there too, not to mention that many governments are banning ICE vehicles anyway. So the costs of shifting may not be that bad, and people will be able to realize some cost savings.

Right now we're at a point in history where shifting to a carbon neutral economy will be uncomfortable in some ways, but not horribly painful.

But the longer we wait, the more likely it is that we'll experience a lot of pain from climate change consequences. And the climate change will destroy a tremendous amount of wealth, cause massive refugee crises, and cause massive drops in food supplies. When those things happen it's going to much harder to make the shifts to clean energy because many will just be worried about surviving disruption in the short term.