You're quite welcome :-)
The sort of thing that jabbermog is experiencing right now could easily happen in the USA if we were to go just a little bit farther to the Left....imagine some disciple of "Reverend" Wright or Louis Farrakhan standing on a street corner in Mainstreet USA, handing out pamphlets about some Afrocentric BS and shouting anti-American slogans, shouting about he and "his people" are being oppressed and all. And let's just suppose that you or I were to be walking by and didn't care for what he was saying and told him so. And let's just say that in the passion of the moment, I let slip something like "why don't you go to Africa if you don't like it here?" or "why don't you go to some third-world Commie fly-blown black hellhole and stay there?". With that I just might find myself in exactly the same spot (or worse) that jabbermog is in right now.
Political correctness and racial 'sensitivity' could easily be incorporated into law far more so than it is at the moment here in the USA, to the point that free speech is pretty much a thing of the past. All it would take would be for the Government to take a leftward shift under an Obama Presidency (bite my tongue) where he is swept into office in a hysterical tide of white guilt and anti-racist chest-beating. Who would protect us from such a legal shift? Certainly not the ACLU....they would most likely embrace it wholeheartedly. We already have severe limits on Free Speech in academia....don't expect to get a good grade in a course if you write a paper that embraces Conservative principles or finds fault with Leftist dogma.
Wish I could argue with your scenario....