I'm tempted to apologize on behalf of my countrymen, but hell no- those reprobates are a national embarrassment to us all over Europe, and deserve the antipathy. I'm sorry you have to suffer through their douchiness, however.

I audibly groan whenever I see GCC license plate on the road in London; these fuckers are part of the reason why I have to either lie about my nationality when asked, or to slowly explain that most of us drive Hyundais back home, not Bentleys.

Edit: regarding the diplomatic immunity, it's not as much of a carte blanche as most assume it is. The bills aren't waived by any means just due to the immunity- they just go to the embassy instead. The embassy usually pays up then chases them down back home to get reimbursed, though often unsuccessfully I'm afraid.