Most people have no idea that they were at least 200,000 people at the ellipse to hear President Trump speak. Most probably went to DC thinking that it might be the last time that they would get to hear Trump speak at a rally.
The people who breached the Capitol did not seem to be MAGA Trump supporters. The answer to the question “who benefits” is certainly not Trump.
Those who just walked through open doors taking selfies and pictures of the Capitol Rotunda were Trump supporters. I don’t think that many actual MAGA supporters planned to enter the Capitol. They just got caught up in the energy and enthusiasm of the day.
I’ve been to several March for Life events. There were hundreds of thousands of people at the speeches down by the ellipse, most of whom march to the Supreme Court building but no one even considered going inside.
It used to be that the right of the people peacefully to assemble was considered part of the Bill of Rights. Obviously that is a dead letter now. If a Democrat accuses you of "insurrection" you have no civil or political rights.