I think you might be underestimating voter apathy. Voter apathy stems further then low voter turnout, it also includes people who vote despite not caring or despite not believing their values will not be represented in that vote. That is, the lesser of two evils is a very real thing for many (most?) voters.

For that to be true there would have to be some dissonance between what voters actually want and to what their representatives actually deliver. If you don’t believe this dissonance exist, then sure, there is nothing I can say to convince you otherwise. I on the other hand, not only believe such dissonance exist, but is a fundamental flaw in our democracy.