The Refs are weak and/or afraid of appearing to be racist.
Or anti-Lesbian Mafia.
You are precisely right. You can assault Catlin with no penalty. That is the okay go ahead signal to hurt her. Odd is it not, Black Lesbians assaulting a white super star straight woman that brings money to the league, because she is a straight white super star. She would be wise to go to Europe before she is injured in a manner that would no longer allow her to play. Every damn one of those refs that do not call egregious fouls should be fired.
The refs are employees of the league. They are doing what the league wants them to do.