Look at the history of the landmass we now call Ukraine. It had its longest run of a quasi sovereign nation as a vassal nation under under Russia first and then became even more of a vassal nation under the USSR. But it didn't become a recognized nation until after the fall of the USSR in December of 1991.
So, your argument, at best, is grossly incomplete, at worse it's a stupid argument.
England was established in the 10th century. Before that is was ruled by Roman forces. Not much has changed since, except that we try to say that disputed between nations cannot keep what they gained through conflicts that result in violent outbreaks, which is a ridiculous construct to begin with. Look at what has happened to Yugoslavia for example. Why was it chopped up and several nations were established as a result?
So then England had a free ticket to reconquer the USA for how many years Jacomo? Yeah we’ll let you decide when a country becomes “real”.
How idiotic.