More correctly, this is the time of year that Christians celebrate the birth of Jesus Christ. It is also the time, long before the birth of Jesus, that religions have celebrated the winter solstice. The winter solstice is the time of year when the hours of daylight begin to increase. When the hours of daylight are the longest which would be the summer solstice.
Jesus is not the reason for the season. He is just one of the religious leaders and religions that have celebrated the “returning of the sun”. The winter solstice does not belong to any religion. It is not anyone’s season.
Do I tell people that I know are Christians “Merry Christmas”? Of course I do. If I don’t know a person’s religion I am likely to wish them “Happy Holidays”. Or if it is between Christmas and New Year’s I may shorten the greeting to “Happy Holidays”. This does not mean that I am declaring war on Christmas; it simply means that I am being respectful of other’s beliefs.
I am sure the signage is not intended to be disrespectful of other’s beliefs, but it is. It is claiming that only Christians may claim the winter solstice.
To the person who displalys this sign I wish you a “Merry Christmas”. To those of you whom I do not know, “Happy Holidays”.