The biggest hurdle for soccer to overcome in order to gain acceptance in the USA is that players need to stop acting like, well, ******* faggots who collapse at the slightest touch.
We like our athletes to act like they're at the peak of their game even when injured: Wills Reed, Kirk Gibson and the iconic one for me is hockey player Ron Flockhart who caught a stick to the face behind the goal and suffered a gash that needed many stitches to close, yet still came out to start the next period, after the ground crew cleaned all the blood off the ice.
Talented as he is Neymar loves to fall and writhe on the pitch at any contact and he's like the Boy Who Cried Foul. This time he really got hurt and instead of getting red carded, Zuniga got off scott free.
You want Americans to take your sport seriously take Vito Corleone's advice: Act like a Man!!