You really only havw two choices (for most elections) though. You can vote for the side you agree with more or not. Sure, there are lots of ways to do the latter, but it’s that. I guess you also have the choice to vote against the side you agree with more, but that’s not really a choice. In this case, it isn’t a false binary.

You can also participate in many other things outside of voting, but that’s totally separate and you can always do more separate things for anything. You can always follow a choice with other choices, but it doesn’t change the effect of the first choice.