I think the US is seen as a generally more violent place, but they don't have the hooligan system with sports. A lot of US sports leagues (not all) are highly

I think the US is seen as a generally more violent place, but they don't have the hooligan system with sports. A lot of US sports leagues (not all) are highly structured as far as player unions and restrictions on payrolls go. A teams ability to simply outspend the competition is not available in many leagues. Meanwhile European soccer is generally less restricted.