Dear Narayanjot ji, so you want Sikhs to accept Dasam Granth as a Guru, and believe everything that is written in it as the true teachings of Guru Gobing Singh ji, and by the logic of continuity as that of Guru Nanak Dev.Do you find Shri Guru Granth Sahib lacking, in spite of the wast canvass, that we need another Granth to compensate for what is missing in SGGS. And about your phobia of atheists and communist(I am not one of them) don"t just paint them all with a black brush,there is always something positive in every new movement and thought.