what is the stupidest american sport?

NFL. It's the b*tch version of rugby.

American football, they are a bunch of nancies wearing a suit of armour, that is not real football.

Curling, not actually sure if that's an American sport...

Cornhole is the other one that comes to mind. I've never considered it a sport, but I know a lot of people that do.

havent these idiots made a sport out of trolling ?..tops my stupidity meter

I don't even remotely care about basketball…