Please don't bring make-believe statistics into this. It makes you look like TheWho.
I'll simplify this. There are two general methods of obtaining power in society.
The first one is the direct one: You bring your tribe or other like-minded individuals and take over.
Jews, actually, follow this first type, with a pinch of its own "obtain high status in other societies" that leads to so many retarded conspiracy theories. (A history of Jews following the first type is the slaughterfest we call the Old Testament.) One cannot convert to Judaism; they explicitly avoid the second method when dealing with outsiders.
The second method of obtaining power is to make others believe you deserve power. The Egyptians followed this directly: "Pharaoh is God." Christianity came along and said "Christ is God, even after he is dead." It's nice to believe, which is why it spreads. "I don't need to worry what happens when I die, because I have Christ." Who can disprove it?
Someone cognized: "I can make these people do anything I want if I make them believe in it! I don't even need to say it's me, because I can use the dead Christ!" The success of these efforts combined into what we know as early Catholicism.
Eventually some fuckwit named Mohammed came along and said "Oh yeah, well I don't need a dead Jew on a stick for this, I can do it too!"
And of course both religions pretty much require people to pass it along. How long would a religion last that didn't care, or had "NOBODY must be introduced to this" as one of its tenets?
Christianity and Islam are the same shit, just differently flavored, passing down the ages like syphilis, eventually losing most of its direct nastiness like every other disease in human history,
In prescientific society it worked, but today we have people who know what this disease is. Some of them antipreach. Some of them go around and intentionally inoculate every child they can find. Why do you think there's such a fucking row about evolution in schools? The heavily infected are having their worlds rocked. They can't take the idea of evidence pushing out forced-belief; it'd destroy their lives.
Now let's take it on a family level. Things can be different here; a warlord can refuse to harm his children, a Jew can force his own children to follow the path. Yet the same types apply.
Normally, with even the most aggressive first-typers, the abuse is directly linked to physical size. "I'll make you do what I want because I am bigger than you." When the kid grows up and can outfight the parent, this is accepted, and passed on to the next generation.
With the truly adamant second-typers, though, they pass it on directly, using whatever they have available (physical violence, threats, etc): "The parent is God, no matter what." Lon Woodbury pretty much comes right out and says this.
It's easy to see where the contempt comes from. Their own children have resistance to this disease and no longer believe them. Is it any wonder, then, that they fall back on what they grew up with and what has been passed down through generations: "I will make you believe this, by force!" Enough of this and it tends to loop back on itself, control of one's own family becoming a cult of its own. Hence, programs, to give them a forced dose of the disease.