Jacob’s prophecy could hardly be more interpreted than his own words; the dominant nation of the entire world is not something that would leave much question. Neither would the nation that colonized the world.
The identities of those two nations is not in any way in question, nor are the colonies.
Do you somehow fear Jacob’s prophecy shattering your man made theology? His words were very explicit.
Thanks for confirming that you do not have Messiah or an Apostle interpreting Jacob's prophecy, and that you are an adherent of British Israelism. Your argument from history is acknowledged and buttresses the historical argument that the holy catholic apostolic church is best represented in the Catholic Church. Who else is there ?