I think some Native American practices are deeper than Native Americanism. I think they come from before. They are not owned by Native Americans. The Native American way of interacting with and describing these things is not the "right" way or the only way.
I am part Native American, but I don't think that is why I have certain rights. I think as a human and a citizen of this earth I have the right to make contact with the forces that have been here from before anyone crossed the Bering Straight.
I don't think a totem needs to always be a secret. I don't believe in many "always".
I think white men disrespect red man religion. And I think red men disrespect white men by claiming white men have no right to claim their birthrights.
I can remember being taught that the magic my Great grandmother taught me was thousands of years old, as old as the dawn of man and was handed to us from the others, who still teach us, and may be older than they are. That stated, no magic practice is original and no one has the rights to certain practices. They all originate from the same place and will come forth in whatever way fits the practitioner best.