I mean, if you want some states to behave like completely different countries with laws and governance model radically different from what the rest of the state

I mean, if you want some states to behave like completely different countries with laws and governance model radically different from what the rest of the states have, you could just as well drop all the pretense and introduce their own borders, own army, and so on. (shrug) This is what my comment has been about. It could be an interesting thought experiment.