Skousen states in his intro "5. Nothing done under government authority has any validity if it violates or limits a fundamental right, unless such limitations have been specifically agreed upon by all citizens participating in the governmental process." What happens when someone joins the citizenry? Do the citizens have to vote again? Seems like it would lead to confusion.
As I understand it, any such limitations would either be added to the Citizen Compact, or be part of known existing law. Regardless of which, a prospective citizen would be aware of each of these prior to agreeing to the terms of citizenship. Thus, any existing unanimity would not be compromised since new entrants are apprised of the new conditions prior to agreeing to citizenship.
At least, this is my understanding of things. Hope that helps!