I am non-religious, in the sense that I do not follow any organised religion, nor do I believe in the vast majority of the superstitions of many religions. I don't believe there is a God as described by the christians, muslims or jews, or supernatural beings as proposed by Hinduism, etc.
However, I think that anyone who dismisses religion as worthless is blind or stupid.
Religion, religious texts, concepts of religion, and so on, have been a natural repository for boundless amounts of human wisdom accumulated over the centuries. Each religion, with all its flaws, is trying to grasp at an essential Truth of human existence. That they fail to quite reach it (for most people) is obvious, but that doesn't make the attempt worthless. Nor is it intelligent to ignore the fact that there have been numerous people throughout history whom one could call "enlightened", who touched on something beyond our normal existences.
There is a very deep well of value in religion. Those who spit in that well are to be pitied.
I'll close with an idea from Rudolf Steiner, a philosopher of the late 19th Century, who suggested that much of humanity's efforts (in the intellectual spheres) aim to reconcile the physical and the spiritual, to answer the question of how it is possible that there is matter and thinking (two apparently fundamentally different things), and how it is possible that there is such a thing as matter that thinks about its own nature.
He suggests that this striving to reconcile the two is split into three great movements: art, science and religion.
Dismissing one in favour of the other is like choosing to ignore your left leg in favour of your right. A complete human being will not ignore one of the three pillars of human thought.