Once it's been made clear to any and every group that their identities are sacrosanct and deserving of protection from 'offense' of any sort, the door is opened to the politics of hurt feelings. And in the mêlée that inevitably ensues, the intolerant will always have the advantage, because they don't care one whit about the feelings of any of the other groups.
Excellent story. This should be publicized widely by Limbaugh, Hannity, Hewitt, and everyone else.