I've been wrong before, but once realized, I don't hesitate to correct that behavior or belief out of some selfish fear of losing face.
That's a level of introspection that most MAGAs are incapable of, and those who are tend to be narcissistic enough to not care. It's truly a set of mental health issues, and it runs deeper than their outward hatred implies.
I read a while back about how there's really strong correlation between people who are capable of certain levels of thoughts and where they fall on the political spectrum. The argument was that people with lower neuroplasticity tend to be more conservative, which can be explained by the fact that lower neuroplasticity makes learning and maturing, or overcoming any level of cognitive dissonance, is difficult to the point that it can cause them discomfort or even pain. This makes them more likely to be attracted to politics and policies which confirm their preconceptions rather than challenge them. It also makes them much less likely to accept any kind of fault in cases like this. It's a lot to do with why cults are almost always religiously conservative - - someone else has the duty of thinking for me, and I can go on hatin' the gays! Even the woo-woo cults always prop up some "enlightened" leader, and the followers get agitated or violent when that enlightenment is challenged by anyone.
The other end of the idealogical spectrum have people who are capable of that introspection and are able to identify when there are deficiencies in their emotional maturity or understanding of something. They're physiologically more able to recognize these situations and effect a change within themselves, and it's why we on the left tend to be less outwardly angry, more respectful, and more willing to grow.
tl;dr: empathy makes MAGA brains hurt, and they need therapy.
Yes, but also to sue one must be able to prove injury. I don't know much about this group, but it is possible they hadn't been injured yet. Or that, knowing this was coming, they built their case months ago and have been waiting until this drops to do anything.
Not saying they're at all worthy of trust, anyone on that side of the aisle isn't, but the case would be tossed immediately if they sued before he took this action.