Now, I am speaking in general terms, not specific to India.
Violence is part of human nature. It is more a function of income disparity than absolute wealth. Rich countries, including the US, have plenty of violent crime.
Also, there are many ways to channel one's bigotry and violence: joining the military and bombing them towelheads or Eye-ranians is considered perfectly reasonable. All you need is the proper PR cover for your actions. Magic words like "national security" and "terrorism" are good excuses to justify just about anything. As they say, the first casualty of war (or conflict) is truth.
Someone posted an article questioning why beheadings are any more evil than double-tap drone strikes.
The purveyors of hate can wear turbans or Armani suits; the content remains the same. At the end of the day, what's right and what's wrong depends on who's got the bigger megaphone and the bigger guns.