Many Trump supporters (primarily the alt-right and white supremacist fringe) didn't simply protest against the establishment, and certainly didn't intend to do so democratically (as that would imply a belief in the legitimacy of the system and the views of their opponents.) They voted with the intent of seeing the system destroyed and an ethnostate emerging from the rubble. Reasonable people can disagree about the size and relative influence of this contingent on the election, but it exists.

Drawing too many parallels between that and the protestors would be unfair, particularly where motive is concerned, but it is hard not to notice the energy is the same in a lot of ways. One side doing violence against the system and another doing violence against infrastructure, each because they feel the system has been irreparably damaged by the influence of the other.