MacLeod wasn't talking about America. That lad was talking about Ameriuca. I'm not certain where Ameriuca is in the world, but it probably deserves our respect for some reason.
What I find interesting is that since the Union Jack Flag is a Voltronning of the English, Welsh, Scottish and Irish Flags, if one of these countries was to retire from the United Kingdom, that the Union Jack would have to be abandoned or changed to reflect some smaller Coalition... But would all the other countries in the world with a Union Jack on their Flag, like Australia, then change their tiny Union Jack or is keeping Britain happy trivial compared to the cost of altering that much stationery?