As I work in three continents, I can see many sides of a prism
Mankind is different all around. In US the soccer game is seen like this:
First: My fellow US colleages don't understand a game where the final result can be 0-0. As a matter of fact this is an excellent point of view: spending 90 minutes passing the ball, then more 30 and nothing happens ... and finally some deadly shots put an end to a boring game.
Second: They also don't understand a game where outside the penalty area, fragile players don't have a place to be. However inside the penalty area, the slightest touch result in an artistic fall similar to pool diving.
Third: They also don't understand a game that is live broadcast at the stadium, the referee commits a mistake, he sees countless times his mistake in gigantic screens, the crowd whispers loudly ... and he keeps his mistake on.
Fourth: They also don't understand a game where a coach brings 21 players ... but only 3 are replaced ... and permanently.
Fifth: Finally they don't understand a game where there is no time to strike or progressive lines to cover: A team can be all the time in his middle field passing the ball and everything is ok
But youngs, specially latin youngsters have a different point of view: A ball and an abandoned street are all kids need. The annoying part of the game, I showed above, is adult stuff: You see american latin kids playing soccer all around, the same way you see black kids dominating basketball in every courtyard you can find. I remember being in a Hotel in L.A. and there was a public courtyard about a mile away: By 7:30 AM there were already kids practicing to become the next LeBron James.
Regarding US sports in Europe - it's like this: Mankind is different - American sports are high on adrenaline and spectacular ... however we Europeans prefer calmer things. As weird as it can be, we prefer to see a hour and half race in a corner, where the cars pass only each minute and a half, rather than an oval with a roaring crowd of cars being smashed all around for about four hours.
We are more bucolic
that is the primary difference. Once I saw a US NBA game, and it looks like an European game at twice the speed. Americans feel the opposite: FIBA games are NBA at slow speed