To them, the fascism talk is intended to make people flock to the liberal cause; to expand power by using tyrannophobia as a way of entrenching liberal rule. It’s all just liberal dishonesty, self-exculpation, and self-aggrandizement that needs to be opposed aggressively.
The problem is that their devotion to this anti-liberal struggle has led them to propagating positions that are completely untethered from what is happening on the Right – sophistry in defense of a premise that is utterly at odds with empirical evidence.
I find it very frustrating because while imo this tweet is basically true (liberal deflection) and liberalism has much to answer for, it is now unfortunately up against something much much worse. It's a bit hopeless.