"No, accept the fact that fish and chips sucks.

Meat in england is made from rodents.

Beer is for idiot drunks for the most part and there were plenty on the streets.

Whine all you want, but my true observation was that most restaurant food that I tried in London was fairly crappy.

Except the Coca-cola was great, being the American icon that it is.

but your subway is nice, too."

Posts like this make me lose faith in people!
As an American, the only positive things you can comment about London are coca-cola and the subway! By the subway, I hope you mean the London Underground and NOT the fast-food sandwich place.

Beer is only for drunks! That's like saying food is just for fat people. Get a grip!

I'm sure with sober reflection, you can find some positives about your trip over here. I understand that the level of customer service in the UK may not be the level it is in the US, but this doesn't mean that everything is worse!
I've got quite a few American friends and have never known any of them to have such a closed-minded attitude when travelling abroad, perhaps its an age thing.