It used to be, as I'm sure you know, but it became completely unfair given the number of pro golfers, courses etc in the US compared to GB and Ireland. It's now a level playing field and makes for one of the greatest competitions in sport. I have no problem with supporting our team just the same as if they were all English.I would enjoy it more if it was like the Davis Cup us against the yanks.
I don't support Scotland, Wales or Northern Ireland in football but I do in the Olympics, or the Davis Cup.