It's a tough conclusion to reach either way. I hate sounding like some doomer when I predict some shenanigans, but I think in 2016 it was more of a joke by people on the left; they legitimately thought he had no chance in hell. Fast-forward 4-years and I'm pretty sure this time they're taking it really serious -- them allowing riots, murders, and looting, as well as purposely attempting to tank the entire economy -- or even withholding support for the police in order to put the public in a state of fear -- elucidates their very clear intent this time around. Corruption and a "by any means necessary" mentality is now concomitant to their existence; at least until many more moderate liberals come out and openly admonish their methods.
But that's a whole different can of worms. Can moderate liberals really excoriate their own party members for their extremist views? Are they willing to do what is right, even if it costs their "team" an election? I've seen a few -- hell, I was even one myself up until 5 or 6-years-ago, but I'm not sure the rest are willing to call them out. At least, not in the way the right will openly condemn and denigrate the far-right.