You need to understand that one of the great British pastimes is having a moan about anything. Especially politics, the weather, neighbours, friends, shops, shopping - practically anything really - and we love doing it, everybody does it. If there's nothing to moan about, we moan on about ourselves saying how miserable or not feeling well etc.
For instance, you can introduce a friend to someone by saying something like "this is my mate Dave - he's a knobhead " and no offence is taken.
Why do you think Aussies call us "whinging Poms"? Because we are always whinging (moaning on), we don't mind, it's just accepted because it's basically true.
But - one of the best moans and jokes is the USA and Americans, it's on TV programmes, comedians do it a lot, people generally view the USA and Americans as a joke, especially now you have a clown in the White House. Any chance we get to moan on about the USA and Americans then we do it.
Any subject will do - we know Americans are racist, we know American police will gun you down for a traffic violation, we know Americans drive massive 5 litre cars that drink petrol like coke , we know American hospitals won't treat you if you're not insured etc etc etc. The topics are endless.
I know Americans will deny what I have written, that may be true, but that is the impression the USA and Americans give to the outside world, the thing is, when people like Aussies say we moan a lot, we think it's a compliment and have a laugh about it. Americans are offended by it and don't accept it even if it is true, that makes it more fun "winding up" Americans. I know if I did it in the USA, someone would pull a gun and kill me.
Col