As to my personal feelings I wish the U.S. had never stopped supporting Tibetans with guns and butter.
HAHA evil western media propaganda. You should immediately apologize to the Chinese people for the this obvious affront to their national history. If I show this map to my students this is the reply I would get. They would then pull out some old Chinese history book to refute what is on this map.
Here is the logic.
Gangis Khan attacked and took over China. At this point he becomes Chinese. So any other country he attacks and takes over is forever Chinese. Khan did attack and defeat the Tibetans therefore they are now also Chinese. They will never admit that the Mongolians controlled China.
Even later when the Manchu take over China they use the same stratagy. The Manchu upon taking over China become Chinese. therefore, any land that was Manchu is now China’s.
I will present them with the fact that Khan controlled half the world including Russia. Does that mean Russia is part of China. They will reply with a straight face. “It should be”