Third parties are obviously the way any intelligent person may choose to vote. This video explains why they are currently not viable in America. Ranked choice voting has to come before third parties. It's not a moral thing, it's voting math.
Strikes, boycotts, or anything that hurts their donors' wallets. There actually is some political will for it too, just not enough for individual politicians to push through. They need to be able to point to external unrest.