why we gravitate away from God and embrace atheism.

We are all vvankers. Our bodies are slaves to urges. Much of sex is sshameful to us in our society. I like long legs.I jerk off. My uncle's admit to it. My dead dad. We behave like rutting animal's at times.  We identify with virility. Freud said.. Our ffirst encounter wwith any new stimuli generates the question can I fk it? Can I eat it. 
God gave us that urge. That need to bonk. He gave us pleasure as well as pain. Master nation is not sinful. Every teenager is now a sinner?  No condemnation in bible. Certain sex acts are mentioned and they drift into misuse  of power. Rape, back door, denying a wife sex babies, fornication, etc. Again emphasis is all sins are bad. Stealing is the same.  God wants us sane. He is not interested in our pecadillos.  John jacked off ten thousand times .  Xxx rated. Stuff is not a barrier to god.
This comes up regularly in churches. The flesh is weak. Clearly looking at titsandass is not spiritually good. It's toxic. It's been ramped up into a level of debauchery. But if you steal you are also in trouble. We are playing multiple categories and grading sins. Only one sin bars you from heaven. I won't mention it and won't invite anyone to search for it. It invites you to cross the line if you know about it. 
We are flesh. We also have souls. We love and some old people die together through grief.
We aspire to be more spiritual in some parts of our lives. Sex can pull us back to the flesh. Many priests monks etc believe in celibacy. That's their choice.
Paul the genteel apostle says.. All is permitted, but not efficacious. Warren Beatty seems to have dodged a bullet, thousands of women. Solomon had hundreds of wives? King David killed to get another man's wife. God forgives us. SEVEN X SEVENTY.  much more than 490 times. He forgives everything if you accept him as lord. To put away the kids toys. To be honest. Your record is expunged. Past,present,future.  We are corrupt to the last second before he grabs us by the collar and takes us away.  We still all are lusty people  , no paragons of virtue reach heaven. We sinned. Same as eeveryone else. But we aaccept we are flawed. That jesus has the power to change us incrementally. He is the boss. He judges what is good. Many bad things will be forgiven. If you leave it on your record you chose to be filthy. You refused a new garment, a new body. You remain ill.  Sex is not an issue unless you make  It one.