I think its very possible that these people go on to become very violent. I don't think they'll ever actually overthrow the U.S government, but its not that much of a stretch I think for one of these people to deiced to shoot up a neighborhood, or a bunch of them get together and form a lynch mob. The zeitgeist of the right wing is being radicalized by the addictive and apocalyptic nature of Qanon, as well as the deteriorating material conditions of the average American over the course of the pandemic. I would honestly not be surprised to hear someone say they think Q wants them to put on a bomb vest and become a martyr. These are my fears at least.