Tantrum voting for a spoiler (objectively the exact same as voting for "the other guy" btw...FPTP Voting suuuuucks) is fine, usually. This time around it is a hard one to suggest, or even tolerate, because the stakes are the worst. That is why it is even a debate...spoiling to feel superior and us ending up with Bush jr. lead to a lot of horrible stuff (I lost friends and brothers to one of them in particular), but it didn't bring down our country and never really threatened to.