Interesting that the red states that push abstinence only and do all they can to restrict women's reproductive health have the highest rates of teen pregnancy in the nation, in contrast to ours, which accepts the fact that sex is inevitable so the best policy is to provide the most effective birth control methods at little to no cost. (At least until the cons started killing funding.) Thus sheer evidence proves that abstinence only is the least effective approach. 

The Christian churches have always known that abstinence was impossible and that making sex outside of church sanctioned marriages a SIN (including masturbation, and any sexual thought) was great for business. What better way to expand their ranks than to convince people they were going to hell for this SIN unless they repented and declared their allegiance to the church. 

This belief still lingers to this day, and is extremely counterproductive and it exposes the hypocrisy of the "pro-life" movement.