The Gurus were martyred for political and religious reasons, which has nothing to do with average Muslims. Sikhs also fought against Hindu kings and opposed the wrong practices of Brahmins; should we hate Hindus too? Sikhs fight for the sake of justice, not against any religion. There have been many positive Muslim figures in Sikh history, such as Baba Fareed, Mian Mir, Pir Buddhu Shah, etc., with Muslims fighting alongside the Gurus.