Manavas and Asuras ARE NOT ACCORDING TO RACE OR CASTE. In a same family one brother may be Manava. Another brother may be an asura. Further for example For example Hiranyakashpu and his divine son PRAHLAD who are very much aginst . Hindu religion depends on each and every soul and not according to mad persons theory. Hindu religion as per bhagvat gita is MOST ADVANCED. Kindly read fully and sensibly