CASTE SYSTEM AS GIVEN BY HINDU SCRIPTURES

All the hindu scriptures are nothing but the upholders and promoters of Varna-Vvavastha which is meant to maintain a perpetual dominance of bramhins over the dalit_Bahujans. These scriptures include vedas, ramayana, mahabharatha, gita and the most notorious of all- manusmriti.
Here are few examples of how these scriptures qualify to be a most dangerous creation of mankind ( worst than the nuclear bombs) which degenerated the status of fellow human beings(Dalit-Bahujans) to lower than that of animals for 3000 years.
Rigveda---According to Purusha-Sukta of Rig Veda , Brahmins, Kshatriyas, Vaishyas and Shudras originated respectively from the mouth, hands, thighs and feet of the purusha or the creator.
Ramayana ---Ram killed Shambuka simply because he was performing tapasya (ascetic exercises) which he was not supposed to do as he was a Shudra by birth.
Mahabharata--- Dronacharya refuses to teach archery to Eklavya, because he was not a Kshatriya by birth. When Eklavya, treating Drona as his notional guru, learns archery on his own, Drona makes him cut his right thumb as gurudakshina (gift for the teacher) so that he may not become a better archer than his favorite Kshatriya student Arjuna!
BhagvadGita-When Arjuna refuses to fight, one of his main worries was that the war would lead to the birth of varna-sankaras or offspring from intermixing of different varnas and the consequent "downfall" of the family. On the other hand, Krishna tries to motivate Arjuna to fight by saying that it was his varna-dharma (caste-duty) to do so because he was a Kshatriya. In fact, Krishna goes to the extent of claiming that the four varnas were created by him only. Thus, Arjuna's main problem was being born a Kshatriya. Had he been a Brahmin or a Vaishya or a Shudra by birth, he would have been spared the trouble of fighting a destructive war.