I'm sure you are not encouraging anyone to hoard guns, stock up on ammo, and flee to the mountains.

I'm just trying to think of how this might play out.
It seems to me that any nation needs a physical space to claim (land). How do the leaders of the Nation of Deseret intend to acquire this land? What will it do if the current owners of the land are not willing to give it up?
If citizenship is open to anyone in the world, what happens to whatever members do not live within the physical boundaries of the Nation of Deseret when the nation does acquire land? Are they expected to immigrate to Deseret, or stay at home as citizens-in-exile?
What kinds of laws would a member of this nation be expected to follow? It seems from what you've posted thus far that all citizens of Deseret would hold dual citizenship with whatever other country they live in currently. What would happen if the laws of Deseret and the laws of the other country conflict? What if the the citizen's parent country declares war on Deseret? (I could also ask how Deseret expects to enforce any laws it does make, but it doesn't look like you even have that kind of infrastructure set up yet.)
I hope you don't feel I'm trying to pick on you and your organization, but these are just some of the thoughts that make me uncomfortable about this idea.