Valid observations. Like you have expressed your opinion, I have shared what I have learned from various scholars without assuming I am a Brahmin. The fact Rigveda's first stanza says when one is born (an athma taking a body) it has not caste. Brahman is one who pursues Brahma is the truth, but the question is can you show one individual who is in that state. That is, when you live in a society and not in a forest in isolation, you do get contaminated and forget your duty is to seek Barhma without worrying about food, shelter, friends, relatives and so on. So, it is an ideal concept. But, one still be a Bramin if can do even part of the search of Brahman within himself for a few seconds. If you look at yourself or myself: we are sons, fathers, husbands, brothers, cousins, workers in a society assuming different roles in every day life. The question is, while we are acting, in every role do we feel the Brahman consciously? In that case, you become a failure when you are acting as a father or son and so on. Do we never express anger? Almost impossible. So, quoting things which we can not practice in every day life may be a convenient way of deceiving ourselves still claim Brahmins. I tried to be a Brahmin when I get up for about 10 minutes and 15 minutes in the night before I sleep. But yet, I am not a full time Brahmin and have no time to be in mediation. I am not slapping on your face and , some times to give a reply takes more time, as it involves self analysis and search. Unfortunately, when we communicate in writing, there are hidden assumptions such as, presupposition( I know so every one knows, it is obvious) , deletion (omitting things needed for completion), generalization(one experience becomes universal experience), metathesis (transposing views) and mind reading (assume what we think is what the other person too thought) and another seven semantic assumptions. Thus, if you think I was slapping on your face. I am sorry that my hand is too small and I apologize to your inner Brahmin spirit.