It's a long read but most of the questions brought up in your comments here can be found in the first 3 sections. Maybe it will clear up some of the inaccurate presentation of history like "Tibet was separate from China before 1720", "Then it was independent 1912-1950". Feel free to question the Chinese government if you believe that certain facts presented in the whitepaper are wrong, and bring your relevant authoritative sources to refute them.