That is what the Holy Heretic is about... liberating humanity from its self-imposed burden of religious self-righteousness, freeing human beings from the institutional dogma that serves to separate one from another by creating an utterly false sense of superiority. Note that Agnivesh says "as religion is understood and practiced today." In truth, there are very few religions that make their ultimate priority the reunification of all human beings without requiring them to embrace dogma of one sort of another.
Part of the problem is that even the best spiritual intentions can be tainted by the concerns of the human ego, the need to be right, and the security the ego finds in feeling wiser, better, and quite literally holier than thou. It does not want to admit that no one is holier, no human is of more value than another. No skin color, language, body shape, gender, ethnicity, or nationality is better than another. No one has the exclusive franchise for truth, spiritual or otherwise. The ego mind hates that; we've all been brought to think that being right is life's big "win." It isn't. Recognizing that we are spiritual beings having a human experience, seeing the Divine in all of creation, and living without fear and judgment -- that's the only achievement that matters. Is it work? Darn right it is. And... is it worth it? Yes, unequivocally.