You are talking about his idea of "the intolerant minority", but it has nothing to do with over- or under-representation of people in certain demographics. If

You are talking about his idea of "the intolerant minority", but it has nothing to do with over- or under-representation of people in certain demographics. If anything, it is almost the opposite. The idea is that intolerant minorities can get to have their preferences dominate if they are more-or-less evenly dispersed among the larger population.