Given what's happening, I wouldn't expect the Democratic or Republican parties to be meaningful institutions, or at the least there will be a considerable realignment. There already has been, really - 2020 saw the Democrats openly using GOP lines in favor of austerity, and while they would hint at it often, this is the first election in which they flagrantly and universally stood opposed to government programs for the working poor or the dependent. This whole situation can only presage that the government is going to make drastic changes, probably repealing the Social Security Act in the next Congress. At that point, and with the drastic decline in living standards that will follow, it will be very hard to maintain the fiction that the old narrative matters in the slightest. I expect that, either explicitly or in all but name, you'll see a dictatorship form, and they're already trialing screamingly dictatorial lines that would have been outrageous even five years ago.
"Trumpism" will disappear from the political mainstream, now that it served its purpose of heightening tensions and acclimating Americans to dictatorship. Sure, some will still believe in the faggotry, but after Trump is gone, the Republicans will go back to not giving a shit about their base. After all, not Trump or his allies actually did a substantial thing, so it will be easy to find some faux-populist to say the magic words and activate the Trumpers' lizard brains. Meanwhile, Republicans will keep pursuing the things they've been doing all along, and they're going to get the crown jewel they've wanted for decades. If the farce of elections continues, I wouldn't be surprised if the Republicans are staged to make a comeback, as Democrats won't be able to use "but Trump!" in 2022 or 2024. Political talent in the Democrats is still as lacking as ever, and the only thing they can manage to put up are obvious CIA bots like Buttgay.