Let's cut to the meat of it. The Pilgrims did not host the first Thanksgiving in order to thank Squanto and his Wampanoag crew for helping them get through a hard season. The Pilgrims gave thanks to no one but God. They would not have given credit to a bunch of godless heathens. Even Squanto they called merely an instrument of God's will.
I would be remiss if I did not note that the two most important men in establishing Thanksgiving as a national holiday are Abraham Lincoln and Franklin Roosevelt.
Politically, Lincoln needed people to think past the cold-blooded killing of anyone who would not submit to Federal power.
Similarly, Roosevelt needed people--in the midst of the Great Depression--to dwell on and be thankful for what little they had. However, he in no way at all intended them to consider what they were losing as his New Deal went into effect.
In this day and age, I am led to believe that I should be thankful for having anything at all, for the federal government stands poised to usurp all that it does not abolish.
Question: Was Brutas more Washington or Oswald?
I think that you know that answer to that, so what are the implications?