Alright, fair point about the analogy. Still, we generally believe (perhaps incorrectly…) that people can change their minds, so I'll stick by it.

Regarding feeling good: yeah, that's a problem, and that makes it harder, no argument from me. The point I thought GGP was making (likely incorrectly; see my response to their response) was that you can't persuade people out of "genuine differences in priorities", which I think is untrue.