Do you agree with the actual methods of how the Mongols ruled the Yuan Dynasty?

Overall, I agree with the main action of the Mongol while they ruled the Chinese: Mongols were separated from the Han Chinese to present the existence of social difference. I think one of the most correct and effective way that the Mongols did that shows their social status against the Chinese was to forbidden intermarriage. Not only does this keeps Mongolians well separated from the Chinese to show "who is the boss", but also makes the babies as tough as our pass generations. If we have a "Half Chinese and Half Mongolian" baby, they will learn "both" from Mongolian and Chinese, which not only will not make them as strong as the full Mongolians, but also transfer the weaknesses of a Chinese onto them. I agree that Mongolians should be treated higher than Chinese, if we perform the same crime, a Chinese should have harsher punishments than Mongolians, yes this is unfair, but unfairness sometimes is a necessity. I agree with the single coinage and currency option, since the system proved successful even in now modern days. I disagree with Kublai Khan's action of letting his son be educated under Confucius's philosophies, this only made him weaker under such educations, which I believe led to a weak education to Kublai Khan's grandson. So when his grandson ruled the Mongolians, he fails to execute necessary tasks and orders efficiently, which led to the fall of the Yuan Dynasty. In final Conglomeration, Kublai Khan was extremely successful in ruling his empire, but he lost when he allowed the philosophies of Confucius to reach his son.