My major concern with the Southern Unity Act is that it may sour relations with the Mideast.
If I may intrude in the IDS's Legislature here's what I think:
In my point of view this bill doesn't hurt the relationship between the Mideast and the IDS. In fact, I would consider it a privilege if I, as a citizen of Kentucky, could vote in IDS elections. As long as you don't lay claim to Mideastern states such as Kentucky I support this idea.
If you want to protect yourself from a scenario where all citizens of the Mideast and Midwest move to these states (Kentucky, Missouri, Oklahoma, Virginia, or West Virginia) in order to have two votes, you could add a clause which specifies that only citizens who have lived in these states for at least 6 months or even a year shall be granted this right.