To be fair, it really has been the structurally anti-democratic elements in the American system that enabled Trump to come to power in the first place, and that have allowed the GOP to remain competitive nationally for quite a long time, despite being a minority party

The US badly needs to reform these elements, but it's those elements that really make reform nearly impossible at this point.

Electoral college reform, gerrymandering reform, increasing the size of the house or some kind of proportional representation, etc