Life is not Christian, not Muslim, not Hindu. Body also has no religions, then why do we fight for religion?

God has not given anything special physically to identify a Christian from a Hindu or a Muslim from a Buddhist. He was able to do that if he desires so. He has given a trunk to the Elephant, wings to the birds etc. to differentiate them from other species. But see people all over the world quarreling each other claiming that their religion is good and other religions are small. What a nonsense?