While Republicans decry left-wing violence (despite the fact that Trump's shooter was a conservative), remember that the right supports and commits acts of violence far more often than the left
These people have affiliation based morality, what determines if a given action was moral or not is who did it, not even in a context sense, as in literally they think child rape is completely moral if done by someone from their community and that even charity to the point of enduring asceticism to support the less fortunate is heinous because the person doing it was Wiccan.
My SO would literally be considered as bad as satan himself for working on a farming cooperative to provide fresh produce for the impoverished via a community pantry, for no reason besides she's not Christian.
The point is, we're all vile brutes for even smacking one of them, but if they commit actual prosecutable terrorism via mass killing, they'll see it as completely justified because one of the good people did it.
They literally just stole predestination from the Calvinists and slapped a warped version of the halo effect on it for good measure.