Every country has them, because shrewd people create these divides and die but their poison weeds linger behind to corrupt, contaminate.
Let me cite example of my own society, now don’t gloat, your country/society must have some skeleton in its cupboard! So called high caste people hate low caste people, they shun their existence in their day to day life then why do they corrupt or defile their women? They too are untouchables to them, are not they??