It seems to be a common attack against abuse victims, to convince them to blame themselves, at least in part.
My wife still suffers from some of that; in spite of reason, she still feels, to some extent, that she is to blame for how her father abused her, and even for his death (from a self-inflicted .357-caliber brain hemorrhage, after if came out what he had been doing to his daughter). At a rational level, she knows that this is all wrong, but still, she cannot escape from it.
I cannot begin to grasp the degree to which the modern pedotrannies **** with children's minds, in the course of confusing them over whether they are girls or boys. It surely must be a much deeper, more sophisticated, and more destructive form of mindfuckery than what my wife experienced, and even if a child manages to get out of that without actually being convinced that he is of the opposite sex, without having any quasi-medical Frankensteinery done to him, it must still leave some very nasty damage to the mind.