It was obviously pre-planned by your magats. Since it was a failure and wouldn't even have worked, that points directly to magats.
Was the Capitol Riot gallows real or just for show? Could the rioters have used it to hang a person?
Depends what you mean by ‘hang’.
In a proper hanging, on a properly built gallows, the victim is dropped a distance of at least 6 feet. The rope arrests their fall very suddenly, and the force of that breaks their neck.
It couldn’t have done that. The proportions are all wrong.