With the exception of Islam, Democrats detest organized religion.
They react to all thing religious the same way a vampire reacts to the sight of a crucifix.
No, they detest Islam as well, but find its adherents useful, as they have a similar goal: the destruction of Western Civilization.
Also, they are scared to offend Muslims for two reasons: 1) they might be perceived as "racist", and 2) they might get killed.
Democrats only side with Muslims because they see them as an ally that wants to destroy western culture, too. Little do they know that Muslims detest godless atheists more than they hate religious people.
Sorry, but I can't help inserting one of my favorite jokes here.
A man is sleeping with the bedroom window open. A bat flies in and turns itself into a vampire. Quickly the man crosses his index fingers and holds them up to ward off the vampire. The vampire replies, "Oy vey, have you got the wrong vampire."