Desire one party rule?
It's a process of demonizing the other side as a threat to democracy, while your own side is a threat to democracy. It's the pursuit of power, or the trough, you will.
If you want to understand why the country seems so dysfunctional, why government action often seems to cause more problems than it solves, it's because we live in a plutocracy of sorts. The system is working just fine for the people running it. And the electorate is only presented with a false choice.
Link: https://reason.com/2022/09/13/the-authoritarian-convergence/