Well I suppose to be fair most people would have said that about someone who suggested that women only criticize him because they're menstruating, or ... I'll just stop here because the rest of that sentence writes itself. We really are in political virgin territory with this man and his fans. The laws of physics don't seem to apply.
On that note, I can't be the only one who notices that whenever Trump supporters are interviewed by the media, or even just every time I take a quick look at Internet commenters on Trump-related stories, one sentiment keeps jumping out at me: "I've never voted before, but I will this time for Trump because... [bullshit reason X, Y and Z]."
My guess is that his support is made up overwhelmingly by people who aren't the "1%", or the "47%", but the 40ish percent: people who simply don't actually vote, or care very much about politics beyond catching one or two soundbites here and there. And the odds are that they won't this time, either.