Consider the new United States Holocaust Memorial Museum and the National Museum of the American Indian:
It wasn't done that way for one reason...The Jewish people were in charge and they decided for themselves what aspect of their history to show the world. They decided with one voice to use the rare space as a shield to protect their people against a repeat of the Nazi holocaust. Jewish politicians funded and protected Jewish intellectuals, artists, historians, Rabbis, and survivors as they crafted a way to commemorate their dead and to use their past to protect their future. They refused to allow the dreams of others to distort the truth of their horror, and now their museum is a powerful testament to a Jewish dream, not a gentile revision of reality. Our space, and the world's window to our Nations, was turned over to the Smithsonian Institution to enshrine the lie of 'manifest destiny' and the historical inevitability of the American Holocaust.
They may even feel a twinge of guilt at the part their ancestors played in our demise. But they will go away without seeing or knowing the "time of horror" each and every Tribe went through upon contact with the European. They will go home without realizing how much of the slaughter was an officially inspired, government planned, and racist policy of genocide. They will not realize the depth of the crime committed so they will not understand the crimes being committed today or the need for reparations to heal the devastation. They will not understand that there were entire Societies for whom the "final solution" worked.