All who have the right to vote, all based on their various unsavoury or questionable reasoning. That's the downside of allowing everyone a vote. But there's no viable alternative that doesn't lead to totalitarianism.
I'm reluctant to claim all 17.5 million of these people all fall into the brackets you named.
I accept your point, now please don't say that I'm saying the 17.5m are all racists. But I'm certain more than 1.3m are.
I love your honesty