The United States isn't a monarchy, we fought a whole war to establish that. Our leaders aren't meant to be above the law. If our "democracy" can't survive putting even a President in jail for their crimes than it doesn't deserve to survive.

And I reject your premise that putting one's leaders in jail will only lead to an infinite spiral of partisan kangaroo courts because other democracies manage to hold their leaders to legal account without going into a death spiral.

And it's honestly weird and more than a bit disturbing how controversial that simple concept has become. I guess we really do want kings here.