He has a business leading tours of Reservations and, if I'm reading this right, sacred sites, to anyone with the money to pay. The wording is careful, but it's clearly spiritual tourism and pay to pray is heavily implied.
https://www.yelp.com/biz/go-native-america-billings
https://www.gonativeamerica.com/
At "Our Ethics." Bolding is mine.
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Perpetual questions: Can I go in a sweat lodge, can I participate in a Sundance? Can I do a vision quest? And ironically folks often cite the desire to adhere to tradition and etiquette which leads them on their own personal Red Road.
Go Native America is not part of the tribal warrior societies that have the burden of ‘policing’ these kinds of ceremonial abrogation, and the arduous responsibility of stopping bogus ceremonies is not ours to shoulder. However
in support of the wishes of Elders and ceremonial people across the continent, let’s be clear that no-one on an Go Native America journey will ever participate in ceremony of any kind as part of their tour with us. Think of it like this: Meaningful, traditional and powerful ceremonies were given by the Creator to particular Peoples, and are their responsibility to conduct.
Ceremonies take time, understanding and long-term preparation.
They are NEVER a vacation activity.
Anyone who is telling you otherwise is not being fair to you, or to the indigenous people to whom the right and responsibility to fulfill those ceremonies was given.