Re: The bigger issue is rising Chinese power
Did the treaty tell the British to remove UK residency right from ALL British Subjects overseas to stop any Hong Kong Chinese from taking up their previous right to emigrate and live in the UK?
Like most questions of nationality, it's a great deal more complex than that. Rules concerning right of abode in the UK started to change in the 60s, as the Empire completed its transition to a Commonwealth. There was certainly a concern that granting right of abode to Hongkongers would create a problem of mass immigration to the UK in 1997, but suggesting that the changes were made purely to disadvantage Hongkongers is inaccurate. In the current climate there are suggetsions that the rules could be softened again.