I got nothing to add. It's that moment of depression when you realize you just have to make the best of what will apparently a worse situation that you ever could have imagined.
It's quite possible that Reaganism is no longer relevant or popular among a majority of voters on the right. Do people believe in conservatism (widely understood) because it's popular, or because they find some truth in it? If it's the latter, conservatives can either chase Trump fans by attempting to make a compelling case or offer some new ideas or better arguments. Or they can surrender and adopt Trumpism and reward the least classically liberal candidate in Republican Party history. A Clinton presidency, even with a Republican Congress, will be a disaster for conservatives, but lesser so.