First, thanks for the compliment of this site and these guys. But let me return it. When I lived in Europe for a few years, my admiration for the British was boundless, as it remains to this day.
I'm unaware of the particular gay disparity you mention, but I take you at your word. So therefore I can only speculate, about something I really didn't know existed.
Does the UK have the overweight epidemic that the US does? Can it be possible that some in the US focus on fitness & appearance because we MUST, whereas in Europe generally, this plague hasn't struck as hard?
As for comfort with our gay sexuality, you surprise me. I would have thought that much of Europe was the more liberated, lacking our US colonial Christian and Puritan fundamentalist traditions. Do you have preachers there bellowing from the pulpit, that gays are doomed to Hell, all of us child molesters & perverts, deserving of no civil rights?
That's what we have here. And the US guys who are OK with being gay, do so despite all the condemnation & hostile legislation directed against them.
As for our "life & enthusiasm" that's a general US trait, waning a bit now as the exciting momentum of creating a new nation runs down, and the mundane realities of just maintaining a country set in. We Americans still have a cowboy view of ourselves, while the reality is much, much duller.
But if you ever come to the US to visit us, do make it South Florida, where gays are not unwelcome, and the weather & waters most inviting. Thanks again for your generous words!