There's nothing quite so apple pie as a few good ol' boys couching their racism with some really clever dog-whistle politics.
"About that couple who sneaked into the White House without any credentials... So pointing out lack of credentials = racism? Is that listed in the "Political Correctness for Dummies" manual somewhere?
Your obsession with race and political correctness? Why, you need something to whistle while shoveling your Canadian snow?
That obsession seems to be entirely your own and that of your like-minded brethren. The vehement and visceral disdain from the get-go cannot reasonably be explained any other way. You're about as subtle and convincing as Mr. Bean.