It was an attempt to minimize the importance of the Mongols and to emphasize the Chinese longevity and importance. It also helped save the various scientific and social achievements that were swept aside by the Mongols.
The winning group always writes the history.
Heinrich Himmler implemented Hitler's Holocaust plan to uproot eastern Europeans and send German peasants to colonize their land. They were Nazis and Himmler was responsible for the Holocaust, and directed the mass killing of six million Jewish people, and many other ethnicities. He later committed suicide in the British custody.
The British and the French leadership didn't want the 14 points because they believed that the fourteen points did not punish Germany as severely as it deserved for its participation in the war and the war crimes that they committed. Wilson's ideas were more idealistic while the other allies believed that Germans should be hit so hard that they could never recover. This is one of the reasons why Germany had a huge crisis in the upcoming period and why they started supporting the rise of Nazism as an answer to this.