Hindus in those days did not look at sikhs but sent their elder sons to fight against mughals who then are called sikhs. Nanak is worshiped by all the hindus. Yes, sikhs do not worship idols they follow seperate faith like few worship shiva few venkateswar. Hinduism does not limit people to follow their faith by way of rituals or practice raligion , it is the origion and reason for origion. this sect never originated because of discontent from hinduism, but to protect the riligion.
