Why people across sub-continent are so volatile…?

A lot of killings across Pakistan, India, Sri lanka and even Bangladesh just make me feel so sad. My folks are originally from India and i have once visited that land. It was all so beautiful and colourful till I went to see a cricket match. On loosing the Indian spectators burnt the chairs and threw stones in ground...it was all so bizarre to see that worlds greatest cricketing nation do not have tolerance to face a loose. On very next day, I saw on tele that a big mob carrying sticks and long sword type blades attacked a Church while Christians were performing their rituals. It was all very eye opening and I started searching things on youtube and it was so horrific to see that a large number of people killing others (and offcourse they were very less in number). So who these people are causing riots and up rest in a big part of India. What do they want…