I'm sure he does realize. The problem is that it's possible to believe this without being racist, but not possible in the US today to say it without appearing racist. It's one of the more obvious Things You Can't Say.
I'm so concerned about appearing racist that I don't even want to post in this thread under my usual account, so I applaud yummy for his willingness to say things that need saying even though it costs him personally in status.
I'm so concerned about appearing racist that I don't even want to post in this thread under my usual account, so I applaud yummy for his willingness to say things that need saying even though it costs him personally in status.