Having been part of the original Sagebrush Rebellion, this entire concept is of great interest to me. It involves history, the concept of federalism and the Constitution.
I will always remember attending the LASER meeting in Salt Lake City, right after Reagan had been elected President, with the leaders of the movement in NM and historian J. Evetts Haley. It was exciting times and little did I know that a few months later I'd be appointed to a senior level position at Interior.
To educate yourself and make up your own mind on this issue, you can't do better for a start than visiting Mr. Ivory's American Lands Council website and download his talking points.