Why there is discrimination of castes in this world?

Tweet

It's is generally observe that, we the asians all around the globe has to face the discrimination due to castes.... As all of us move towards these western countries for better living standards and leaving behind our families. Instead of helping them, some people discourages them. what are ur opinions on this topics........... is this fair..... if not ........ then who will b held responsible for that.... foreign or education policies of these developed countries..... How this can be removed from the society n who needs to take the initiative to that???????? this is the question to the today generation youth......... plz make your comments on this topics.