I'm gonna go out on a limb here and now point out that you are twisting your own arguments to make a point. From what I understood, it was not that there is high percentage of children that get molested by step-parent/boyfriends, but that a large perecentage of the children that do get molested happen to be by step-parents/boyfriends.
For example if there are 2000 families with step children, and 20 incidents, and 12 of them happened from these 2000 families... well yes, most of them are from these families, but that does not mean a significant portion of these families have incidents. Correlation vs. Causation.
And you're right... you do present facts, then you distort them and present them in a manner that supports your opinion. You're like a #hardonhoes politician