Yes, some Native Americans built pyramids. No, they did not look like those.
In fairness to Mr. York, his Nuwaubian Nation was a confusing synthesis of Muslim, Jewish, and Ancient Egyptian beliefs, but he also claimed Creek and Olmec native heritage, because f**k it, why not? And he's not close to the worst perpetrator. Take "Iron Eyes" Cody. You know him from this:
The one with the iron tears.
He was one of the most influential Native Americans in Hollywood history: He advised some of the great directors of Hollywood's golden age and insisted on historical accuracy in Native dress and rituals in the movies he worked on. He also wrote a book documenting the nearly lost art of Native hand signals: