Evangelization is a task of crucial importance for Christians. Saying Happy Christmas I, as a Christian, mean to announce the birth of Jesus Christ, the son of God. If atheists or non Christians feel offended by that, it's their problem.
I'm not offended if thats the connection you make, but he was born in March.
Again, the holiday goes back way before Jesus Christ and so do most of the traditions that are associated w/ today's celebration. The common themes of the holiday like gift giving, Santa, trees, etc, were around long before Dec 25th had anything to do with christ.
Jesus Christ is not in my holiday theme b/c that tends to alienate non-christians from the holiday, but I still say merry christmas.
