The glib psycho babble author may have a dog in this fight. i.e. What would it take to get end wet and what could ruin this hunt or cull?
Step 1 – undermine/neutralize the girl’s protector/s. Share the above points with daughter to drive opportunistic wedge between her and family. BTW what of the mother? Is she saying “Do the bitch.. I’ll hold your coat”? Or “girl .. tag me in”.
Maybe it’s not just the father then.
If things go wrong, who’s left with said kid … and her kid?