Ask you dad, He seems to know more about muslim than our own guruji than ask him who laid foundation of Golden Temple.
Everyone has has certain issues, even my dad has some issues as he stayed in muslim dominated area when he was small i.e. Meerut.
He tells me how sometimes when returning from school riots would breakout and police would be all over the city.
I am talking about 40 years back not about partion.
On other hand my grandfather says he likes muslims as before 1961 , my grandfather along with dad and rest of the family stayed in Iran.
According him Muslims are very good to do business with and he hates hindus, brahmans.
As for me I have been taught no religon is wrong. Islam and Hindusim are old religons and they have been corrupted. Sikhism is world's youngest resligon and it has started showing signs of corruption i.e. lots of people doing certain stuff that doesnt go with spirit of gurbani.