Eurarabia? Not so much. Muslims are not going to be increasing their share of populations as significantly as the hysterical folks feared. The problem for the Denmarks and Netherlands of the world is that they are not used to immigrants at all, that the fears of being swamped by Muslims is not about losing their majorities or political dominance but dealing with folks that are different. Perhaps these facts might reduce the appeal and legitimacy of those who try to inflame the fears. Or not. Facts never get in the way of a good mongering of fear.
Still, the important stuff is at the bottom of the piece---once again, the key is not so much religion but wealth/poverty.