What have they done so far? They panicked a bunch of idiots into thinking we stole the election.
It seems, IMO, to be far too late to silence the alt-reality bubble. Maybe I am wrong, it'd be nice if pushing back merely collapsed the void. But they are Americans. They are paranoid, armed, and dangerous. Cold and calculated moves may be required to better position ourselves before setting up for a direct conflict. A Friday night massacre on social media intended to silence them is one heck of a direct attack.
You are eliciting moves and counter moves at this point.
A smart group among them would target the tools of investigation. Internet and electricity. Without that there is no intelligence gathering as we are familiar with in the modern age. It might also drive the public against them. OTOH, an even smarter group might find a way to twist that scorched earth approach. Let us hope none among them can blow out a candle.
I am afraid we'll find, one day, that crazy does not require stupidity.