So he was trying to push him off while holding on to his helmet trying to rip it off?He put his foot up to push him off and it was first on his gut and in the scuffle it moved down and did contact his groin area. There is nothing that shows he was aiming to kick him in the nuts. I'm not sure what you're point of focusing your "wrong doing" on rudolph is. He definitely instigated further confrontation but garret took it to a whole new level.
Garrett took further confrontation to another level while being pushed back by 2 Steelers... Besides, the way the helmet landed, it pretty much looks like all he wanted to do was just put it back on Rudolph's head...