Kradek posted... Ok, good
We know for a fact that he taught them to question the religious indoctrination on evolution they were being fed, and with the pic in the OP it's pretty obvious he did the right thing because they were being indoctrinated with objectively false information.
I disagree. I think it's always a good idea when the "disruption" is preventing mental manipulation of children. What exactly do you want, for him to move in with them for 6 months to make sure the lessons on critical thinking are solidified for the rest of their lives? He taught them to think critically and now the mom/grandma will have to learn how to defend their faith from critical thinking, instead of just indoctrinating these girls into never questioning or asking questions. If they're old enough to text they can always just message/ask him questions as well.
I will always support someone trying to break religious indoctrination to the same degree I would support someone trying to break racist/bigoted indoctrination. Based off what little he's told of the grandma, it doesn't sound like they'd be raising these girls to be sterling examples of Christians, just the kind who plug their fingers in their ears when people start countering faith with facts and going "lalalalala". I consider that harmful for people and always support efforts to end it.
I see it as looking out for the mental health of his nieces.
Hm this is fair. When said this way. Realistically, it will help out in the long run.
Ill delete my prior posts. I judged to quickly.