Yeah, in the primary all options are valid to vote for, even if it’s just symbolic. That still shows where people stand. However, in the general you pick who you need to pick in order to get the best outcome. You don’t get to vote for symbolism then, at least if you’re a rational person and not just doing something out of an emotional attempt to feel better than other people. It sucks, but that’s how the system functions for now at least. Acting morally superior doesn’t do anything except allow the morally corrupt to get their way.