This is an absolutely FASCINATING situation we have here.
Leaving aside the fact that the impeachers have to control the House of Representatives (not happening) - let's say that a coalition of Uniparty types managed to get something going in the House.
Impeachment is a political process.
In modern times, it's necessary for the Media to paint the impeached as a slimeball to move the process forward.
They wouldn't be able to do this with HALF the country in the case of President Trump.
This particular half is the armed half. And we're not particularly happy with the Media these days...
Furthermore, a significant portion of these people are "woke" to the nature of the Uniparty, thanks to President Trump and the recent election.
The Uniparty coalition would be in danger, in addition to the Media. :)