It's likely that those of us who post in political threads here underestimate the huge number of people who neither know, nor care, anything at all about government and politics - and when they vote, they vote for names they dimly recognize, or whoever seemed charming when they saw a commercial, or the party that Mum & Dad voted for, or for the rebellious, the party that Mum & Dad avoided.
So I think it's like Hillary said. About half of Trump's supporters are in the basket of deplorables. Thus half are not.
barfo