The holiday does mark that occasion, you can put whatever spin on it you want to make yourselves feel better, but thanksgiving day is directly related to those historic events and that is what your celebrating because your doing it on that day, how you choose to celebrate is your own business, if you do it with family or whatever, but basically your giving thanks to the indians for the dinner and the land. If you wanted to make it more to what your talking about, it would maybe change day or change name, but the holiday your celebrating is related to the indians, its easy to say it doesn't mean that anymore we've moved past it, but it does mean that, otherwise your just using it as an excuse to eat more.