Jesus was born a jew, still jews do not consider jesus as god, and they do not pray to jesus. They have their own god called 'yahweh'.
Besides 6 miilion jews were killed by western-white-christians during the second world war, under a program called 'holocaust'. And atleast 1 million jews were killed by spanish western-white-christians in the 16th century, under a program called 'inquisitions'.
The fact is 95% of sikh beliefs are similar to the muslim beliefs, especially the basic ones. So just being born a hindu, and/or having hindu sounding names, does not make nanak a hindu.
Christians, muslims and sikhs believe that the whole earth belongs to the people of their religion only, and because of that they have permission from their own god to rob and murder others. They also believe in winning the trust of their victims before murdering them.
So it is true some times they help people of other religions, fight with each other, and they all have many branches also, and they fight among their own branches also. But their ultimate aim is to kill every body except people of their own religion.
And western-white-christians are racists also because they consider non-western-white-christians as fake-christians.