That is when like it or not you have to decide which of the candidates is worse and vote for the other one. I don't think I have voted "FOR" any presidents the past 20-30 years but I have voted against one in every election. I don't care if Biden were to drop dead after the election, i'd rather have Harris than a dictator. I think that is what will propel Biden to victory. When the time comes and people realize it's either Biden or Trump whether they like it or not they will vote against Trump.
Haley is not really viable. If for any reason Haley were to win the nomination how many of the Trumpers would vote for her? I'd say practically none. Just like the Haley faithful, they are because they refuse to vote for Trump. Hell, most of them will vote for Biden simply because they know Trump is a trainwreck. Trump will win 50% of the republican vote from his emphatic cult members and maybe another 25% of them that just refuse to vote democratic. Biden will win 100% of the democratic vote and as much as 25% of the republicans that aren't stupid enough to elect a dictator. That is why Biden will win.
I haven't even mentioned the persons like you. Republicans that refuse to vote for Trump or Biden. As far as i'm concerned, thank you, Republicans who refuse to vote are basically one-half vote for Biden.