Not from the US, but when the current president of any nation whips up a crowd of fanatic followers at the end of his term to stay in power against the will of the people that is a coup.

What the reasons are for the individual follower is completely and utterly irrelevant, because it is overshadowed by the fact that the current head of the executive tried to overturn the result of an election.

And quite frankly: the only ingredient missing here was support of the military — if he had that the US very likely could have become a dictatorship right now.