In this time, when it is clear that Biden will not get in without the Left, and the mentality is "anyone but trump" it is the perfect time to rally behind a revolutionary third party. A Greens/DSA/BernieBro alliance could seriously hold the election hostage. If this is not the time, when the fuck will it ever be? obviously this is not enough, but you can "hold them accountable" way more than you could hold joe fuckin biden and the democrats
Literally every single DSA person, except one I know is voting third party. American left does need to mature into an non-electoral movement, but we need time, and sadly this isn't the moment. Maybe 2024, but not now. We just prepare for the worst option.