First off Christmas was a pagan holiday too. We change the name of it and change the reason for it. Look at which one wonIf they want too? Isn't that enough?Should atheists celebrate Christmas?
Or do you mean only Christians should be allowed to celebrate Christmas, and nobody else?
What about Halloween then? My dad says its a pagan holiday. Should Christians be prevented from celebrating Haloween too?
Halloween was a pagan holiday too. It was a time to worship the devil back when it was Saint Hollow Eve. since then the name has changed and at least to my knowledge means nothing more that "give candy to kids day". Note some people celebrant the "Day of the Dead" which is very similar to Saint Hollow Eve.
As a side note many (if not most) churches have a "party" for the kids on Halloween to keep them from celebrating Halloween. It is done in a similar fashion but called something else and keeps kids off the street.