How exactly do you propose fixing a two party system without voting? The United States's first past the post voting system pretty much guarantees a two party system[1]. If you want to see a move to ranked choice voting or another system that would encourage third parties, then vote for candidates who are in favor of passing RCV laws and vote for ballot initiatives to pass RCV laws.
> Sure, you have a choice, but what value is that choice?
Clean air, clean water, a person's right to self-determination over what happens with their body, equal pay for equal work...I could go on for a while, but I don't think you're looking to be swayed.
Right now, if a popular movement becomes so excited that they put forth multiple candidates, it divides the vote and they lose.