Well you knowledge of history seems to be very poor. Was Islam involved in world war 1 and 2 ? For argument sake lets assume that ramayana and mahabharata were true, so all those people killed were due to Islam ? Were there no conflicts before Islam ? These are political struggles and you are not helping them by branding them as religious struggles. There is a struggle for natural resources. Trust me if India had an immense oil wealth like Gulf then hinduism would have been branded as the most violent religion. So instead of spreading hate and disturbing your own mind, think in terms of peace.