you idiot thambi, listen. There are 2 aspects. The SHRUTI and the SMRITI. The former is immutable. If you are an ape walking on 2 legs in any corner of this earth ( Which I have serious aspersions in your case) then this body of text of universal principles applies to you. This is common to all Hindus and this says what the meaning of Brahmana etc.. is. The other aspect called SHRUTI is more relevant on the social scene and can and must be modified from time to time based on newly emerging parameters etc.. Here you will find a mention of caste system that was interpreted as heriditary because of the selfish ness of the few in the upper castes. And they exploited the people of lower castes. That's part of human nauture for exploitation, selfishness, personal comfort at the expense of fellow human beings.
Try to get a life and exercise the part of your head that badly requires some discrimination.
