My Muslim perhaps thinks the same too when they say ‘Happy Eid’l Fitr’. That I believe Christ is my savior doesn’t mean I want to impose on the other person who I knew is not Christian by greeting him/her with ‘Merry Christmas’. I don’t care what have been the practices in the past. If you think I’m too PC, it’s your problem, not mine.
Comparing the universal celebration of Christmas with Happy Christmas (Happy only because He is the Savior of the World- even in Russia and China) to Happy Eid’l Fitr’ or Happy Hanukah is a bit of a stretch. Don’t you think so?