Unless something changed recently, I believe you're just clearly, obviously wrong on this.
I can openly state I only write personal letters of reccomendation for white women.
It is *personal* cuz he isn't doing it as an agent of the University.
He almost certainly win in court, after spending his time and money, and dealing with the frustration.
Altho you *never* know about courts . . . it is possible you'd find some sympathetic jury that would ignore the law, as happens on occasion!
No sane man would test it. I can't imagine a court finding in his favor. But he would most definitely go broke trying.
Given that his declaration was discriminating against religion he would lose in court since he was a state paid employee announcing on a state paid for web site his intentions to discriminate based on religion.
Give it a shot.