It seems to be a categorization error. I wouldn't consider most of those people Christian. Real Christians know and follow (or at least make an effort to) the teachings of Christ and His Church. It's not enough to say "I'm a Christian, Jesus is God" (grace alone people are idiot reductionist heretics - the Bible implies one's fate will inevitably influence one's way of life which is what both the Orthodox and Catholic Church teaches). It's a way of thinking and living in the world.

Beside the obvious contradiction of Genesis, the main selling point of contraception is sexual liberation and promiscuity which runs against the Christian doctrine of sexuality and the family.

It seems to be a categorization error. I wouldn't consider most of those people Christian. Real Christians know and follow (or at least make an effort to) the teachings of Christ and His Church. It's not enough to say "I'm a Christian, Jesus is God" (grace alone people are idiot reductionist heretics - the Bible implies one's fate will inevitably influence one's way of life). It's a way of thinking and living in the world.

Beside the obvious contradiction of Genesis, the main selling point of contraception is sexual liberation and promiscuity which runs against the Christian doctrine of sexuality and the family.

It seems to be a categorization error. I wouldn't consider most of those people Christian. Real Christians know and follow (or at least make an effort to) the teachings of Christ and His Church. It's not enough to say "I'm a Christian, Jesus is God". It's a way of thinking and living in the world.

Beside the obvious contradiction of Genesis, the main selling point of contraception is sexual liberation and promiscuity which runs against the Christian doctrine of sexuality and the family.