Trail Life USA requires that the chartering organization be a religious Trinitarian Christian organization (and specifically excludes the Morg) and that all adult leaders must be Trinitarian Christians.
My Troop (80+ years old) is self-sponsored and owns a lot of property. We are close to an educational execution. We have leaders who are Christian, LDS, Jewish, Theist, Hindu, and Buddhist.
To join Trail Life USA, we would have to switch to a Trinitarian Christian sponsor (giving up over $250,000 in real estate), and remove all of our LDS (Jack Mormon), Jewish, Theist, Hindu, and Buddhist leaders.