I'm more interested in the response of FaceBook.
If I were to post that ALL MUSLIMS SHOULD BE EXTERMINATED! I would be banned immediately probably for life.
However, I strongly suspect that posting "All Jews Should Be Exterminated" by a Muslim will be accepted by FB.
That's a good clue for the White Supremacists. Just sign up with an Islamic sounding name, and you can post about the 'extermination' of any race. And you'll get a free pass from all the Tech Gods.