They should take this seriously, for sure. But I also wouldn't be surprised if most of this fizzles as it dawns on many of the for-the-lulz fools that this is serious and some of their buddies are going to face prison...for the lulz.
Of course there's a core of more determined insurrectionists here, but to do most of this, they need the giant mob of idiots as cover. I gut says all of this fizzles, but we spend the next two years dealing with repeated domestic terror attacks from Q-Anon dead-enders.