Lenin held that religion was a simply product of social....

“ Lenin held that religion was a simply product of social oppression and economic exploitation. 'The social oppression of toiling masses, their apparent complete helplessness before the blind forces of capitalism ... that is the deepest contemporary root of religion'. Theoretically it followed from this that the elimination of social and economic evils should lead to the disappearance of religious belief. In practice, however, the party has never shown any confidence that this would happen: it has not felt able to concede the churches toleration, and let them decline of their own accord. On the contrary, from the beginning it has aimed at the destruction of the churches and the forcible secularization of believers. With the exemption of the years 1941-53, that has remained the case ever since. ”

Geoffrey Hosking

From : The First Socialist Society: A History of the Soviet Union from Within