If the Republican party get back into power in 2024, they will never give it up.
This is why they went along with the Big Lie. When the Big Lie was debunked, they still supported Trump's attempts to cheat in the election. (When everyone knows Trump lost).
By 2028, they just can't win another election Democratically with their current ideology.
The Republicans are now a party for white working class (Trump's base).
Trump gives conservatism his base. (working class, but also the crazies, conspiracists etc).
Without Trump, the party would not be able to get close to winning.
1. Racial Demographics are changing.
2. Younger people have abandoned this brand of conservatism.
(A new brand of conservatism is needed for younger generations. Some people get more conservative as they get older, but they are not going to become religious fruitcakes.)
So the Republicans no longer want Democracy, because they know they can't win in 2028.
Their last chance to stay in power was to cheat in the 2020 elections, or/and in the 2024 ones.
If Trump or some other MAGA's get in power, they will never give it up. They will become an authoritarian country that does not use Democracy to decide elections.
So the Democrats are left with no other option but to ban the Republican party, and have a new conservative party form. Many of their politicians who abided and assisted Trump's efforts to overturn the election are going to have to be arrested. The best first step will be to ban the elector system and just use the popular vote.