I find the parallels to Caesar in a different way. Caesar took his army into Rome because he had been ordered to return to Rome without his army, at which point his political enemies would have destroyed him.

Trump is talking about running in 2024 because it's the only way he can escape being destroyed by January 6 and various related legal problems.

Now, Trump isn't a general of an army. Yes, he was commander in chief, but the army would (I presume) not have followed him to the extent of obeying illegal orders. But if Trump wins and gets increasingly legally cornered, he's going to try to find a way out, no matter what laws it breaks, and some of those ways are going to tear the country apart.