I'm guessing the seethe aimed at American Football has emerged from decades of hearing Americans equate a love of soccer with homosexuality. I could be wrong; perhaps we started it.
Apart from homophobia, the most common complaint about soccer seems to be the lack of goals, which demonstrates a suspicion of sporting artistry IMO. Very much get the impression that bigger goals coupled with a Wimbledon-style physical long ball game would've seen the sport become more popular with American spectators. Oh, and a lack of draws; nothing induces rage in the States more than a lack of a clear winner.
Anyway, as we're doing PTTGOYN - the media's regular "why don't the Americans like football?" articles would be one. They've been banging on about this since USA '94 at least, and who gives a damn? 90% of the world loves football, but the press in the UK act like they do with film and music acts - you're nothing unless you're popular in the States, which is utterly pathetic. The Americans have their own sports; leave them to it.