I don't think "he was born here" is a defence against crime. I think it came up yesterday because people were blaming immigrants, so somebody pointed out he wasn't an immigrant. It makes no difference what nationality anyway. It's British law and a criminal is a criminal.
OG....its virtually impossible to give Talbot any answer, unless it concurs EXACTLY ( didn't mean to use capitals but what the heck ! ) with his own thinking....he is just trying to start an argument.
They claim and feel they are British or whatever. They may even officially register as such if allowed. But they are from where they were born. Nationality is not a state of mind. In some places where a union exists one can claim to be a citizen of the union yet chose to relate to the country of birth within that union. There is nothing more to be said nor anything controversial save for deniers of reality.