The Proud Boys never really cared about Trump's winning or losing. They're all just mentally ill people who want a race war. That's all they want.
And there's not a lot of them at all. It's irresponsible on the part of the mainstream media constantly to react as if they're a massive force that people should fear rather than a tiny fringe group. That fearmongering makes a small percentage of people afraid to vote. And that may be all it takes next time.