I myself belong to lower caste Hindu. But let me tell you that in the present time Caste system has been obsolete. This has happened due to the reforms that took place in Hindu religion. Now some sections of the society are making agitation for considering their community as Shudra (consider the latest agitation in Rajasthan). The real problem begins if the religion does not accept the reforms. But let me tell you that when the cast system was at its peak, even at that time the shudras had right to exist & nobody slaughtered them because of their caste.