Hmmm... OP doesn't like British music? Strikes me as a country fan then... because that is the only type of music in the US that the UK hasn't had a major star contribute too...
You can go back to Classic Rock, where a LOT of the big players were Brits.. Zeppelin, Rolling Stones, Beatles, Pink Floyd, Black Sabbath, Fleetwood Mac, Iron Maiden, Queen, Cream, The Who, Super Tramp, Status Quo, Genesis, King Crimson and 90% of the punk era like The Clash and the Sex Pistols.
Then you have new romantic stuff like Joy Division, Tears for Fears, Depeche Mode, ELO, The Cure, Ultravox and the Smiths...
Go forward to stuff like Radiohead, Muse, Oasis, The Prodigy, Franz Ferdinand, Blur, Coldplay, Super Furry Animals, Supergrass, PJ Harvey and the Libertines.
You have your electronic masters like Chemical Brothers, Fatboy Slim, Basement Jaxx, Lemon Jelly, Four Tet and Mr Scruff.
We even have some urban and rap like the Streets, Dizzy Rascal and Tinie Tempah...
And that is just names of British artists that came to my head when I wrote! You can't tell me that our music is any less quality!
OT: I do enjoy stuff from other contries, almost as much as my own... in fact I won't usually look at where something is from before I wacth/read/listen/play it. I love films from other countries, in fact, Scandinavian films are catching my attention more at the moment (when translated) and of course you can't get far without playing US/Japanese games or watching US/Asian films!
I listen to a lot of electronic music too... but I never usually look up the nationality (hence the small selection above... they are the only ones I know are definitely British!) I know a lot of what I listen too is European though.
I still have a soft spot for British stuff though. I love British films, especially stuff on the Warp Films label, but we also have a big hand in stuff like Harry Potter too...! And you can't say no to a nice dose of British comedy!