First of all, Asians can be very restrained in their reactions to this sort of thing. Second, the police are the main sources of such intervention and they are not encouraged to take the law into their own hands. Third, they have probably just learned more about our problems that we have to deal with here at home.
“First of all, Asians can be very restrained in their reactions to this sort of thing.”
Depends when, where and for how long. I’ve seen Thais just shrug at obnoxious Westerners here, but also, if they crossed a line and grabbing a woman would qualify, the odds are very high of eating an elbow to the jaw or a front kick to the groin. Of course they will smile as they do it!