1. Which part of the discussion were not mature?

2. The situation is not loophole left by the British. But it was specifically left in place so the one country two system would work for the next ( then ) 50 years. To guarantee the certain freedom of the Hong Kong people which was clearly listed out in the Sino-British Joint Declaration.

3. It is not a Riot. ( I am sorry but that has to be one of the most insulting thing ever said ) No one started a Riot, What was once, one of the most peaceful protest. by 1M people, was fired with Rubber Bullet and Later Metal Bullet to eyes and head shot ( Both in ER ), Along with Tear Gas with NO Prior warning, Against a group of people with bare hands and no weapon.