Your whole story linking the history of Cambodia to some imaginary tribe of cultural superior 'Kshatriyas' is complete nonsense.
I suspect you are Persian yourself, or some related ethnicity, and trying to claim the splendid South East Asian history for your own race. What you wrote is an utterly, disrespectful, and complete bogus story that insults the true South East Asian heritage of the Khmer people.
Stop spreading your ethnocentric lies.