What you're missing is that politics is compromise, by definition.
I don't like that the Democrats don't align with my beliefs perfectly, but I'd rather vote against Trump than whine about the Democrats not being perfect and stay home, which is what a massive portion of American voters did, thanks in large part to the "Why bother when the Democrats are just as bad?" messaging that is completely a PsyOp that helps Trump whether you're doing it on purpose or not.