Germany it's because of the holocaust (funny that it never translates into wanting to make a safe homeland for Roma people at all costs).
US it's because of Christian death cults wanting a new temple in Jerusalem because they think it will bring Jesus back.
For the impeachment itself, assuming the Democrats all vote for it, Musk only needs to buy 9 republicans.
For the trial, he needs to get 20 republicans for the two thirds. It's not going to be cheap, but it sounds doable.
The problem is that leaves Vance in charge, and a focused autocrat is not an upgrade.