LTTE - Did not kill in the name of God Shiva, didn't try to convert others into Hindus. They were after the land and political power.
ISIS, Al-Qaeda, National Thowheeth Jama'ath and every similar terrorist group in the world - Killing in the name of Allah, force others into Islam, They want land, political power, law and everything to themselves.
So it's oblivious where the problem is