Which is sad seeing how Thanksgiving is an American holiday and being that they live in America they really should celebrate it.
While I have been fully assimilated, I dont really celebrate thanksgiving either. I guess i do when i am with friends who do. A couple of things would probably be a barrier to entry, first the traditional thanksgiving food is not even remotely like what asians eat. The funny thing is everyone celebrates X-mas though. I think the problem with thanksgiving is that it is linked to a certain kind of food which is alien to many immigrants. I dont really know, I am just guessing.