Well, reverse is true as well. If Valverde is a man, then he needs to take the punishment as well. Technically, it's assault. If he does it again in the future, some light jail time could be considered.
This time, he should get away with a warning and some football ban. Next time he won't be this lucky.
If the guy really said what was reported, I'm punching him too, except I'm doing it right their on the pitch, when it was said.
Also, the football pitch is one of the few places where its perfectly legal to assault someone.
Yes, you get banned some matches, but has any player ever been criminally charged for a reckless tackle, elbow etc? Don't think so.