He's the Republican party's nominee, it's best to start coming to grips with that fact. That scary, insane fact.
Which Republicans are those? All the ones that are going to vote for him based purely upon the fact that he's not HRC, and not considering for a moment what he actually is, a thin-skinned, reactionary, petty man who consistently throws out unconscionably racist, sexist and nationalistic rhetoric. Yay, us???
And regardless of whether or not you hate/despise/loathe HRC, if you live in a battleground state, what is best for the nation as a whole is to make sure Drumpf gets no closer to the White House than he already is. In California I have the luxury of lodging a protest vote but if Brexit has taught us nothing else, in states like Pennsylvania, Wisconsin, Ohio etc. protest votes for Drumpf run counter to what is best for the nation.