Americanisation isn't the problem generally, there are a lot of good aspects of American culture that have influenced and continue to influence British life and culture, writers, artists, musicians, comedians. It's the superficial, vacuous things that are the problem. Friends is one of those things. As a comedy show I see it as like Starbucks, formulaic, boring, trying so hard to appeal to everyone that it's humour is humourless. The characters are one note, one dimensional creations and the episodes/plot lines all revolve around the characters' one dimensionality. It makes no attempt to challenge itself. The only credit I can give it is the variety of those plot lines that led to its longevity. The writers truly managed to wring the format beyond its natural shelf-life. Compare that show to Richard Pryor, Bill Hicks, Aziz Ansari, Louis CK, Curb Your Enthusiasm, Arrested Development, Parks and Recreation, Seinfeld, hell, even Modern Family which does a better job at the all inclusive style. They're all a much more challenging watch but still completely entertaining. So it'd be totally unfair to say everything about American culture is bad. It's obviously not.