People questioning patriotism of sikhs should know that while sikhs constitute 2% of India's population, due to a large number of sikhs volunteering for service to the nation in the armed services, they constitute 20% of Indias armed forces.
A few rotten apples do not mean entire orchard has worms. Negativity is more visible than positivity, keep that in mind. Was JS Arora also not patriotic, when he guided us to 1971 victory as commander in the east?
I know it is a hard time, and emotions running high - but do think before posting such things.
PS: Just as a note, I am not a sikh. Incase you view it as personal bias.