No, violence is never the choice; you cannot change people's minds by force. Neither can you do it by insulting them and their beliefs ("barbaric", "dirty"), however wrong they may be. The only thing that can help is the Gospel of Jesus Christ that transcends all borders and cultures, proclaims all people equal regardless of their ethnicity, race, background and whatever else, and changes people's mentality and traditions.
There is no place for the caste system in the Christianity. More.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.