Comment by montagg

During the Colfax Massacre during Andrew Johnson's presidency, there were two factions that claimed they had won the gubernatorial election for Louisiana. They both tried to set up governments. White Democrats murdered freed black men and Republicans in the streets. The President at the time was sympathetic to the south's cause and only reluctantly sent in the army to take charge of the situation.

This is already part of American history. You're describing some amazing world where people follow the rules even during chaotic situations, and I guarantee that will not happen if there's a contested Presidential election with Donald Trump on the losing side. It will be a lot more like the racist South trying to claw back its power, because his most ardent followers are exactly the same kinds of people. He doesn't need to be good at being an autocrat, he just needs to encourage enough people to support him no matter what, and eventually he'll encourage someone who IS good at it. So you're right that he is not the risk, alone, but he's not alone. He's surrounded by enablers, criminals, and domestic terrorists who have a vested interest in his success.