If the parameters for holding are so obvious why isn't it called consistently?
The parameters for targeting are spelled out in the rule book, they aren't vague. And if you go by the rulebook below, the UCLA call isn't completely crazy.
Article 3: No player shall target and make forcible contact against an opponent with the crown (top) of his helmet. When in question, it is a foul.
Article 4: No player shall target and make forcible contact to the head or neck area of a defenseless opponent with the helmet, forearm, hand, fist, elbow or shoulder. When in question, it is a foul.
Defenseless Player: A defenseless player is one who because his physical position and focus of concentration is especially vulnerable to injury. When in question, a player is defenseless.
People need to get used to a different type of football.