I don't think you're alone in making that connection, but I do think Trump's base is neither organized nor influential enough to constitute an overturning of American politics. It's bad, sure. But it's not like he's managed to promote his agenda. He's managed to damage America's position on the world stage, he's effectively taken a shit on the American Presidency as a… well, for lack of a better word, brand.
However everything he's tried to do has been stopped short, usually because It's Fucking Illegal. Further, the SHENANIGANS the Republicans have tried to pull while Trump has provided a distraction, have also largely failed.
Lastly, I've never in my lifetime seen Americans more engaged in politics than right now. There are a lot of people who are up in arms, and there's a gradual ablative process where Trump's supporters are falling away from him, realizing the error of thinking a billionaire narcissist would have their best interests at heart. Sadly, the remaining portion of his cronies seem to be doubling down.