"All but one person I met who claimed Indian blood claimed it on their grandmother's side. I once did a projection backward and discovered that evidently most tribes were entirely female for the first three hundred years of white occupation. No one, it seemed, wanted to claim a male Indian as a forebear.It doesn't take much insight into racial attitudes to understand the real meaning of the Indian-grandmother complex that plagues certain whites. A male ancestor has too much of the aura of the savage warrior, the unknown primitive, the instinctive animal, to make him a respectable member of the family tree. But a young Indian princess? Ah, there was royalty for the taking."
January 1, 1970
https://en.wikiquote.org/wiki/Vine_Deloria_Jr.