As against killing the non believers and taking their wives as sex slaves? I guess a lot of systems in the past treated lower classes as less than humans and exploitation - economic was the driving force. Asking non believers to pay extra taxes, serfdom, slavery (often under religious sanction), feudal system (still active in Pakistan), bonded laborers, apartheid etc were indeed social evils that existed and exist. In India they have been outlawed and not sanctioned by the state, however some primitive people still stick to their primitive ideologies and keep following them religiously.
This disease will slowly go away.
In any case a property dispute is nothing about caste, its a property dispute.
Please don't derail the thread. If you believe caste-ism or something like this is practiced in Muslim countries open a new threa and we can discuss it. This thread is about indigenous population of India which is tagged as untouchables and lower caste and treated with complete inhumanity.