One of the more unpleasant truth about democracy is that it’s quite fragile. In any real sense, the US has only been a democracy since 1965. When large segments of the population are ideologically opposed to democratic governance - universal human rights, respecting fair elections, following the plain text of the law, and so on - mechanisms by which democracy sustains itself begins to fail.
One possibility is to amend the constitution to change first-past-the-post voting in all local-to-federal elections, to let never-Trump types speak out without facing electoral suicide, and to divert right-conservative attention away from a single “leader” figure. And obviously the electoral college needs to go.
But the fact that more than 65 million people voted for Trump at all speaks to a great sickness and nihilism in American culture. Trump himself might be put out to pasture. But Trumpism existed before he got here, and it isn’t going anywhere.