The way to fix it is to change the constitution (for example [1], although bigger changes are probably needed, IMHO anyway, but this is a good start) but the constitution is so hard to change that this is not really feasible in the short to medium term. And making it easier to change the constitution is a catch-22.
And while the Democratic party is obviously tons better than the Republican party, that's only because the Republican party is so awful. The Dems seem to have only tepid interest to fix this at best.
[1]: https://www.nytimes.com/2025/08/21/opinion/trump-constitutio...