The Black Truth of "Thanks"giving

"Black Friday: People trample others for sales exactly one day after being thankful for what they already have" (Unknown Source).
This holiday conundrum has always seemed very puzzling and ironic to me. Why is it that people, who claim that they are "thankful" for everything they have, continually desire more? A day meant to reflect on all that one has and how lucky they are to have everything and everyone around them in their lives essentially loses its essence when the next day these aforementioned souls literally sacrifice their well-being to acquire more than what they were "thankful" for. The root of these actions stem from the inherent greed of man. It is only in human nature to desire more than what we already have; we can always have more. This traces back to the nature of humans to always desire more, whether it be material possession or complimentary praise from peers. Because of this inherent greed of man, I personally believe that the tradition of Thanksgiving has lost much of its meaning. Tracing back to historic roots, Thanksgiving was created by Separatists forming alliances with Indians who happened to save their lives; however, with the desire to acquire more land, these Indians were soon forgotten and conquered by these said white men, which perhaps set a permanent scar on the wholesomeness of "Thanksgiving". Thus, in my opinion, Thanksgiving has lost its meaning and does not truly represent our "thanks" and "gratefulness" which we claim we have for others. If we truly were thankful for everything we had, there would be no need for "Black Friday"; however, the sad truth is that humans are greedy and thus there will never truly be a day where we are truly "thankful" for what we have.