The GOP wants tyranny. They want total control.
Do they believe that the majority of the electorate wants them to have total control?
They don't care. They want their band of 1950s America back.
No, they just want the winning team to be the one wearing red.
Politics in any multi-party system tends to degenerate into this. Taking the simplest case, of a two party system, the chances are that any given voter has policies on both platforms that he likes, and ones that he hates. Picking the one party that provides a better representation of your own stance than the other is almost impossible.
So almost nobody does that. They cheer for the team they picked because their parents supported it; Or because their parents
didn't support it; Or because they prefer the colour red over blue; Or prefer blue over red; Or because when they first became aware of the game, the captain of one team was more handsome than his opposite number, or had a better haircut; Or because that team were winning when they first made their pick; Or (most common of all) because their friends mostly support that team.
For most of most people's lives, the choice of whether the President, or the congressional majority, or parliament, or whatever, are red or blue has had no more real-world importance than the choice of which team to support on the football field. They support the side they always support.
If your football team has a disastrous season, loses every game, the coach is jailed for cheating, and the star player is caught raping the cheerleaders, you might be pretty unhappy about it; But you won't switch to supporting their traditional rivals. You will maybe be less enthusiastic, or less public in your enthusiasm, but you won't start cheering for the other guys.
In football, there really is no lasting difference between teams, other than the colour of their shirts (Jerry Seinfeld did a routine about this). For most voters, the same is held to be true of political parties. Voters who don't behave that way are a rare and exotic phenomenon, known as "floating voters", and make up a tiny fraction of the electorate.
Few voters see any important difference between parties, other than that one is THEM, and the other is US. And most of the time, they are broadly correct in that assessment.
Then one party becomes actually evil. But their fans have been hearing for decades from their opponents that they are evil. There's nothing you can say that they haven't heard before; They are deaf to any entreaty to recognise the evil, because accusations of evil are how the game is played. Any effort to point it out will just get a littany of "your side is just as bad..." in response.
The boy who cried "tyranny" is now getting his desserts. Tyranny is here, and nobody's interested in listening.