counter-point: Voting for someone that does not represent you because you are more scared of the other guy is indistinguishable, as a signal, from someone that fully supports them. By voting against your own interests you are actively undermining the democratic process.
I should add, everyone absolutely should vote. Even if you feel compelled to abstain from either candidate, casting a blank ballot or voting “abstain” is a much clearer message of dissatisfaction.