A few things that are accessible within the USA include:
- Participating in mutual aid programs
- Campaigning on the local level, including for positions like poll watchers
- Making your voice heard in community events in general
- Joining your local DSA, networking
The thing is that the American right is equally or more divided than the left.
Lots of Haley voters out there who will sit this one out or maybe even vote Biden. More than enough to balance the dissatisfaction with Biden among lefties.