It just seems like an impossible ask. Corporate interests and capitalist media are just too massive to effectively counter in the short-term. I mean, Sanders was leading the primaries after Nevada, and MSNBC of all organizations was literally comparing him and his supporters to Hitler. By the time we reach the point you're referring to, I'm not sure the planet will even be largely inhabitable.
Genuine question for you, and/or @Soxbadger, and correct me if my assumption is wrong:
Why do you look at these election results and think "good, the Democrats made the right call, no other candidate could have done this"?
Yes, Biden is going to win, but he's eking out a victory against a consensus bottom-five president in U.S. history. Yes, much of that is due to the outdated electoral college, but nevertheless, the relatively narrow margin of victory is one that I would be embarrassed or at least uneasy about if I were a Democrat, not one that I would be proud of.