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.
Let's see again eight years from now :-(
The entire premise of the rally was “stop the steal”. Clearly they weren’t all extremely coordinated, but to varying degrees, the people who stormed the Capitol did so with the stated goal of overturning the election. That they were inept of that they failed isn’t evidence to the contrary.
People traveled from out of state. There was little that wasn’t deliberate about this.
Fine people on both sides!
I also think most people who entered the Capitol building did so because they were just following the people in front of them; not conciously entering to voice their oppinions to the Senate and House.