That isn't really so, faithless electors have never been likely, the occasional faithless elector has had nearly no impact on elections, and a recent (2020 I believe) Supreme Court ruling made it clear that they are not allowed.
There are many issues with the general election. The electoral college is the original gerrymandering set up by our founding white supremacists, and the first-past-the-post, winner-take-all system makes sure that general elections only give the public minimal choice between two major party candidates. We desperately need to reform the system.
But voting in the general election remains necessary, to minimize harm, and voting in the primary election is vital, as the only place we get any real chance at a say. If we want to reform the system, dropping out if it is the surest way to fail. It's exactly what the major parties want you to do.
This really feels like false equivalency. Yes, the MAGA crowd has a delusional belief that they are an overwhelming majority, and that electoral losses must mean a rigged election. They are ready to try to take power by force, they've demonstrated that, and there are high up instigators pushing them that way. But "the left" isn't really Democrats, and either way, I don't see any likelihood of a revolution from Leftists or Democrats just in response to an election. Mass protests, yes, but not revolution. Now, if the next election after that is suspended, then we might be close.