According to the basics of Sikhism, a true Khalsa does not discriminate or see anyone as a demeaned soul. He or she will rise in defence of the oppressed and will do charity to help the needy.
The idea that Sikhs were the saviors of Hindus and they had held weapons to protect Hindus is flawed. This article explains how Hindus had helped Sikh Gurus and contributed to major Gurudwaras.
Congress' Mani Shankar Aiyar claimed Mughals came to India and made it their home unlike British who just ruled, dismissed all allegations of religious persecution of Hindus by Mughals