@Welsh Exile
I feel like you're deliberately missing the point. I literally said 'I'm not against the other home nations exploiting the rules'. I also want and expect Feyi-Waboso to play for Wales.
My issue is with the attempt to approach players like Fin Smith who are very clearly on the radar of the England senior team and effectively bribe them. That's scummy if you ask me.
In answer to your question, if a player has come through youth ranks with an English club and is born and raised in England, I'd regard them as a product of our system. If that player is dual qualified, I resent the 'race to the bottom' where the likes of Scotland will offer a cap before the player is ready just to capture them. I would only really count development in a professional system. So in your example, that kid would be a product of the English system. However, if they were born and raised in the other country, then that doesn't make them English. I'd have no issue with them declaring for the land of their birth. Harry Randall would be a good example in reverse. He definitely benefited from being in the Welsh system but is English by birth.