Yea, I got your point. I just fundamentally disagree. I like giving real power to the states and provinces; away from a centralized power. The approach you describe will forever favor status quo and entrenched powers. In such cases it’s not hard for me to see why war is where it leads.
Then they need to change their country’s constitution or move to a country more to their liking. But they can’t bring the country with them when they leave.
Think: When did this separatist movement begin? After Russia agitated for it. The same as in Georgia.