That’s pretty much the process I went through ~20 years ago. The individual has to care about actual evidence and truth rather than the “truth = agree with me” crap that is common.
I think a big, big part of it is realizing that the people on your side are not necessarily arguing in good faith just because they’re on the “correct” team.
And that’s a pretty big deal when “just ignore that, it’s not real” is a deep core practice of your team.