" Either slain thou shalt go to heaven; or victorious thou shalt enjoy the earth; therefore arise ,O son of Kunti (Arjun), resolved in battle."
1. That above is from the Hindu scripture. There are similar verses in scriptures of all religions - although I am not sure about Buddhism.
2. The Holy Quora'n, which is compulsory for all Muslims to follow, requires Muslims to protest when wronged, and evict a trespasser in your abode. The Holy Quora'n states clearly that the greatest Jihad is Jihad e Akbari, which requires one to struggle against the evil within. It is difficult to explain all these in simple terms in a short writing, but I am hoping that I have conveyed the general idea.
3. Islam is an inclusive religion where Shias, Sunnis and other varieties are treated equal. They intermarry, for instance. Islam also accepts that followers of other faiths are free to practice their religion with hindrance. If living in a Dar ul Islam (literally meaning home of peace - where Muslims are in majority), the non-Muslims are protected.
4. The factor here is not religion. The factor is the politician. He has been creating situations throughout history to reap benefit out of it.