I said that there are similarities between Islam and Sikhism. Sikhism has more in common with Islam than Hinduism. They are both monotheistic religions that are opposed to worshipping idols. Hinduism is a monotheistic idol worshipping religion. This is the reason one cannot be "Hindu-Sikh". There is a big difference between the teachings of Hinduism and Sikhism. I agree with you that there is a big connection between Hindus and Sikhs. But this is different from saying that their is a big similarity between Hinduism and Sikhism.

Yes Guru Gobind Singh defended Hindus from the Muslims. But how did Hindus pay the Sikhs back.  Last time I checked it wasn`t the Muslims who massacred 3000 Sikhs in Delhi with no consequence.