I think the thing with MTG is that she is a true believer in a way that transcends Trump. She still believes that QAnon is real, that Democrats are evil baby-blood drinking monsters who are embedded deep into the Epstein rot, that there are Jewish space lasers, and more. But her true belief is not subject to Donald Trump's whims as it is with maybe, I don't know, 90 or 95% of the other people we regard in that camp as being "true believers". She was willing to completely break with Trump in support of her true belief. That makes her dangerous in a different and possibly worse way because she has a force of personality that has the potential to rally millions of crazy low- and no-information people to her cause. She can't do that today, obviously, but once Trump dies, those people are going to be looking for a new avatar, and I promise you they won't rally under the flag of Just Dumb Vance.