The “anti-other candidate” is not new, but the process this time around features a blurrier plausibility of just who the protagonist is insofar as maybe the greatest number of voters in history are not even sure who the protagonist is supposed to be.
Humans receive history in advanced narrative form and, at least, perceive this in the context of probabilities. For some time now, voting American humans in particular have been Dem-splained the inevitability of HXVI, and have been either with her, or against her.
The emergence of Trump in the Republican primary resonated “Ross Perot” strongly enough that the theory of a phony candidacy has been a popular one, nevertheless rejected by anyone wanting to be plausibly serious. As his candidacy has continued, it is not unusual to see people admit that they had entertained the idea that he was a Clinton shill, adding that regardless, he’s obviously gone rogue by now, so the point is moot.
This precisely is the transition in “idea entertaining” that must take place before someone can believe in the plausibility of voting for Clinton under any circumstances: to prevent a megalomaniac who would actually go off script when he gets a whiff of victory. It’s a conundrum, for sure, but who cares? Nobody was ever gonna believe she was elected out of admiration.
Even among the many who wouldn’t vote for either one of them, it is slowly becoming plausible why someone would. Going into election day, they’ll believe the polls, and believe that the narrated probabilities of their own history were plausible all along.