"Okay, so both parties are bad, but what else can we do other than vote?"
There are going to be a lot of disenfranchised liberals that have lost faith in electoralism. Rather than allow the people to fall into doomerism or denial, what advice would you give people who are realising that western democracies are broken and that voting for the lesser evil is impossible? What action would you tell them to take?
Maybe I'm being too cynical here but I feel like America has essentially zero revolutionary potential. The entire population is heavily propagandized, all significant leftist groups have been dead for 50+ years, and for most Americans, things aren't that bad. They're getting worse, but compared to the situations that have historically spawned revolts (serfdom, mass starvation, etc) it's not that close.
It's possible in the future, but as of right now the other people in this thread are correct that local organizing and mutual aid is the most productive thing we can be doing.