A little ray of hope in these trying times:
Coups are actually not that hard to stop by the people. Was quite surprised to learn this actually. "Coup attempts have happened all over the world, and over half have failed". Civil Resistance Against Coups: A Comparative and Historical Perspective
10 Things You Need to Know to Stop a Coup
The military doesn't even like Trump, so beating a non-military coup is even easier. Mass protest and civil disobedience can be enough. Should it actually come to this, my biggest fear is that affluent centrist democrats and never Trump conservatives won't rise up and just accept business as usual. Also, people not wanting to protest and gather in fear of corona.