I don't doubt the rest of South America couldn't care less about the war. I do believe Top Gear was trying it on, same as with the Man Love slogans in the American South.
Number 1 - I saw that episode and its unclear to me exactly what happened and whether or not it was contrived. I suspect the latter - or at least exaggerated.
The car said "Man Love is Okay" (or something like that, IIRC) in big pink letters. That's pretty hilarious, imj. The Hillary Clinton for President sign was probably more inflammatory.
In any case, I guess I don't really care if he gets attacked or not. I like Clarkson and find this method of entertainment kind of hilarious. If he wracks up some kind of personal problem for it, I'd tell him he was being a good soldier, doing his job, taking one for the team.
We should have more of the same. Indeed, on "Almost Royal" "Georgie Carlton" (an actor) almost runs afoul of an inner city mofo who threaten him and calls him an a-hole. That's good stuff.