Put the vote up to the people and majority rules.
"What vote would we need to make it majority rules?"
The majority rule, however, is that different terms do not become part of the contract.
But as in any civilized democratic country, they have to live by majority rule.
There could be a transition over years to majority rule.
Over time, popular sovereignty would give way to the idea of majority rule.
But most of the time, the majority rules, because a wall with gaps is much less effective.
There is a strong case for switching to majority rule.
That way, political control is assured, where all nations have members, and majority rules.
Each department casts a single vote, with the decision made by majority rule.