Humans have practised purity as a behaviour since time immemorial. Without a single doubt, purity is a human ideal. This means that human behaviour is directed towards purity as a goal. After all, a human ideal is a timeless goal. Humans may not be perfectly honest, but that does not mean honesty is not worth pursuing as an ideal.
To me it seems that evolution has favoured human beings who have pursued such noble ideals. Honesty has proved valuable to the human race. I believe that the preference for purity has also been selected for by evolution, because that is how new life forms come into being and stay separate from others until they become species of their own. Those who fail to separate themselves will never achieve the status of species as they lose their genetic distinctness.
We may not get a 10/10 on an exam in school, but that does not mean it is not worth pursuing this ideal. When we have an ideal, we will work for it and we will achieve more. With this ideal, we may at least get an 8/10 or 9/10. I always get high marks on my exams because I have the highest ideal for myself. I want the best for myself, and that is why I pursue such an ideal. I am keeping my best interests in mind, and that is the same thing that humanity does with the ideal of purity. Humans want the best for themselves because that is good for their evolutionary survival.
The deepest concern for purity is found in the highest form of human philosophical and spiritual idealism. You will find the ideal of purity in human philosophy and spirituality because this ideal is ubiquitous. Westerners themselves are moral purists when they claim that racial purity is evil. They want to be morally pure from concern about racial purity because they do not want to be tainted with ‘fascist and Nazi ideas’.
I see Western morality as misguided because it is a historical aberration. Humanity has always pursued purity, and this is only moral. The ideal of purity did not start with ‘fascist and Nazi ideas’ nor is it unique to fascism and Nazism. The ideal of purity is practical for humanity and that is why it has always been stable throughout the ages and millenia.
Western morality is in essence seeking to be ‘pure from humanity’ but this is such an anti-human ideal that I cannot deem it as moral. I believe that humans are moral. Confucius also believed that humans are good and moral. As a traditional Chinese I see anti-human ‘morality’ as inherently against morality. This is not morality but anti-morality. Liberals merely believe they have morals. They think their hatred of purity makes them moral. Indeed it makes them unlike all humans before them, but it does not make them more human than their ancestors. Completely to the contary.