Perhaps a new corollary to the axiom that no country with "democratic" in its name is a democracy?

In general, the more that someone is trying to push the point of view that something is true, the more likely it is to be false.

And no country with "United" in its name is actually united.

For example, all 3 of the non-English parts of the UK have separatist movements that are big enough they have MPs elected.

Well the fact they need to advocate for separation is proof of unity by default at least. It is united as government organizations, not united as a hivemind.

Unity failing under the previous is say, Birmingham besieging London. The latter never happened.