I think that caste system is number 1 enemy of Vedic Faith. Maharishi Dayanand had proved beyond doubt through religious debates that birth-based caste system was never a part of Vedic teachings. Caste system was used by Hindu priests to exploit poor people for thousand of years. Ignorant have always been exploited by so called custodians of religion. It is true with every religion in one form or the other. Currently, Islam has been hijacked by its custodians by taking the name of Jihad to kill lot of innocents around the world. Time has come for Hindus to go back to true Vedic Religion by joining Aryasamaj Movement.
Read following article from Swami Agnivesh-especially on "Caste system Disorder":