It is true Ax is putting Sikhism in a bad light here. However, as a born Sikh myself from a devout Sikh family, I can tell you that Sikhism isn't like how this person portrays Sikhism. Ax views belong to a disreputable sect of Sikhism known as Khalistani, who are fundamentalists and a terrorist group that call for a separate Sikh state in India.
Sikhism is a very enlightened and positive religion which promotes harmony and peace in society. It is very humanitarian and I am proud of being born Sikh. Many Hindus have nothing but respect for Sikhs and adoration for the Sikh gurus.
This man is trying to breed secetarian attitudes, when our own Gurus had nothing but admiration for Hinduism. The fact that the Sikhism was not a distinct religion until the last Guru a century later after the founder, shows that Sikhism was a Hindu movement. Please read the Guru granth Sahib online, it is full of positive references to Hinduism and sounds very much like another Hindu text. It was orignally in Sanskrit as well, before it was written in Gurumukhi, because Sanskrit was too difficult for the masses.
There are some Sikhs who treat Sikhism as nothing but a banner of pride they can wear. They are not aware of Sikh teachings, they couldn't even care, it's just pride for them. They treat Sikhism as being a religion that came out of a vacuum. They deny all connections to Hinduism. That's fine, but, it is what it is, fanaticism.