Keyes was from out of state, so you can eliminate any established political base; both candidates were black, so you can factor out racism; and Keyes was plainly, obviously, completely crazy. Batshit crazy. Head-trauma crazy. But 27% of the population of Illinois voted for him. They put party identification, personal prejudice, whatever ahead of rational judgment. Hell, even like 5% of Democrats voted for him. That’s crazy behaviour. I think you have to assume a 27% Crazification Factor in any population.
A commenter named Jon H said, "May I suggest it be called the “Keyes Horizon”?"
It's a perfect name for the condition. Just thought it should be part of your vocabulary. Now back to our regularly scheduled program.