It's also the old story, the same that many governments faced during COVID, if you do a lot and actually stop something from happening, people say it was a waste of time, nothing happened, you over reacted etc.
If you don't do anything and it all goes badly, people say you didn't do enough etc.
So theoretically even if Gore did start to fix climate change, if he had real impact, there's a chance the world would've turned against climate change as a hoax and waste of time.
The sad part is, we'd still probably be better off overall.