My natural accent is American. I chose to speak with a U.K. accent when I was about to enter the final year at drama school in London. I was going to try to find a way to stay in the U.K. after I finished college and could not imagine trying to live and get work there with an American accent.
However, in recent years our nation has seen a sizable influx of illegal immigration that at best highlights some alarming inadequacies and at worst indicates a broken system.