"Nothing" is rather strong and doesn't strike me as accurate at all. After all, the story of the Holy Family is part of the "true meaning".
I realize there is much to learn from the birth, life, death, and resurrection of Christ, and that loving your friends and family is a natural result. My comment was in reference to all of those people who keep saying that the "true meaning of Christmas" is being with your family, getting together with friends, or giving, or any of the other sentimental feel good stuff that ignores the fact that Christmas is the time that we celebrate the birth of Christ.
I guess my comment could have been a little harsh, but I get a bit frustrated with hearing that year after year.