For we do have a Free Will. Therefore, we are not predestined by God. This makes religion in contradiction to God. For religion, anyone of them, dictates that man is governed by his actions, and thoughts, under the umbrella of what is acceptable in social complicity. For example, the use of verbiage.
Profanity is indicated as a sin.
Ignorance is the truest of sins. I wish not to go through all the examples, I could easily detail. My point is that there are too many obvious discrepancies in the theology of religion, and the reality of life, and the existence of God. Look how fragmented each religion becomes over time. In the beginning there are just Jews.