The far left and fringe are now going to exaggerate the stakes of this election beyond what we could have previously imagined. I would not be surprised to see especially heightened levels of violence attempted in the next few weeks - both targeted (e.g. potentially POTUS) and untargeted (e.g. OKC) but police and government are the top of the pile for "ire", and then all of your BLM types will think they're now practically missionaries for "RBG" and doing things in "her honor", so we might see more random attempts on officer's lives like we've already witnessed.
You are absolutely right. Anyone with a brain can see Joe really doesn't stand a chance without fraud and cheating. Conservatives know that, the left knows that. 4 car parades and 6 person rallies do not make a winning candidate.
So they are going to be absolutely, insanely desperate now. They may think they have a small chance to hold off a nomination until after the election, but they can't hold it off if Trump wins. Which is looking very likely. And that puts the President at risk. I hope the USSS is on their game.