This abusive language is the result of Indian educational system, policy makers & biased media, which is working overtime to generate a generation of biased, corrupt minds & no tolerance towards a different belief system.
And as suggested by the muslim brother above that Sikhs have taken some verse out of context & are allowed to smoke is absolutely wrong. Please also read the story of 10th Nanak Sri Guru Gobind Singh Ji's horse refused to cross a tabacco field.
Yes, Sikh scriptures give example of Hindu gods at times & muslim faith but in certain context of their good deeds. Sikh scriptures also condemn the praying of any powers of Maya {Devi / Devtas} for materialistic gains and always guide Sikhs to pray directly to Akal Purkh. Sikh ideology considers Hell or Heaven{the after life worlds as per Hindu, Muslims, Christians} as the part of cycle of life and death. Sikhs are told to remember Him(God) only all the time with humility & giving respect & equal status to people of all the religions & beliefs.
I am saddened by the lack of knowledge of people in wider India and their use of abusive language towards minorities. This is all because of the fanatic / biased media & leadership of current India.
As for younger generation, lets please educate us with the TRUTH.