

Republican ideology is hierarchical. There is the bottom layer of voters who votes for Republican politicians because of bigotry and hatred. Thenre there is the upper layer which consists of Republican politicians who uses bigotry to convincing ignorant morons to vote for them so they can grift in peace (and let their oligarch buddies grift alongside them).
So it depends on who you ask in this hierarchy. The bottom rung wants outgroups to suffer, because they think that means they will not suffer. The upper rung just wants to grift, and ignorant bigoted voters lets them do that. Undermining democracy, faking elections and disenfrachising political opponents of course lets them grift for much longer, so authoritarianism is a natural outcome of this.
Of course they are, if he wills it.