I agree, but I don't think the "few people talk about it" criterion applies. It's not that it doesn't come up in debates, it's that nothing much comes of it (yet).
Nothing comes of it because we're regressed into a hyper-sensitive society where topics that remotely involve race can't be discussed anymore for fear of someone's feelings getting hurt. Empires have collapsed in the past because of migrations of peoples, this is potentially no exception.
