Do they CARE it's Christmas?
Every time I hear that song, I cannot help but think "Do they CARE it's Christmas?". Christmas is a Christian tradition. To the Muslim, it's a pagan holiday. Not only do they not participate in it, they avoid it altogether (well, the Muslim I know, at least, my next door neighbors included).
In mostly Muslim areas, Christmas must be like Ramadan for Christians: if they know it's the Season, they certainly don't care. This attemp at tear jerking is supposed to entice generosity, but to me it simply shows utter ignorance of other cultures.