Even if they take over the Capitol, hang Mike Pence, and shoot some democrat lawmakers, I don't see how they rule the country after that.
How the military and cops will react to orders coming from someone who plainly stole an election according to every norm we have about how our government is supposed to work, and who sure looks like they're sending us toward single-party dictatorship on fast-forward, but maybe is kinda, sorta, technically doing all this legally, or at least has sown enough confusion that you're not sure whether they're legitimate or not, is anyone's guess.