Because he sees Japanese as disease from the outside but the communist is a disease from the inside and need to destroy before becoming an unstoppable force. Also the communist is a blocking of his plan to unify China in one flag to defeat the Japanese forces in the country.
It united the culture of the Inca people and created a sense of loyalty to the emperor.
1 is true and 2 is false and 3 i dont know sorry i only know for those 2 questions