Any holiday tradition should be allowed to thrive, even if it goes against other religions. They are made to celebrate a certain time, date, and place. By banning one holiday you are going against all freedoms in the constitution since it is a persons right to practice and believe in whatever they feel like.
Thanksgiving should not be banned. Thanksgiving is a large part of American history and how all of us came to be in this wonderful country. In modern times, Thanksgiving is about getting family together and celebrating. Every year I enjoy hearing people take the time to reflect on what in life has made them thankful. This is a good tradition that everyone should practice.