The "touching" Dawkins described (in the OP's link) is an act of grooming, gradually crossing moral boundaries to test the intended victim's resistance and, if weakness is found, to break down that resistance. It is not innocent, it is not harmless, it is in no way excusable.
Fortunately, some people understand that it is appropriate to deal with molesters firmly (though in a way that "I don't think...did any lasting harm".)
Asked by the dispatcher if any weapons were involved, the father said “my foot and my fist.”
“I didn’t proceed to ask him any questions sir,” the father said. “He is nice and knocked out on the floor for you. I drug him out to the living room.”
The father was not charged in Frolander’s beating, police spokesman Jimmie Flynt said.
“Dad was acting like a dad. I don’t see anything we should charge the dad with,” Chitwood said. “You have an 18-year-old who has clearly picked his target, groomed his target and had sex with the victim multiple times.”