I think American fans are just as passionate, we just don't express it in the same way.
We sing at concerts, not sporting events. Fires and throwing stuff on the court are safety hazards and you will get thrown out or arrested for trying it.
Either way I think it's funny when people say they are better fans than other places. (Unless it's about NY, they are the worst haha) My guess is the loudest, most exuberant fans are just the drunkest
