As make believe as any other step parent.
So the answer is to kidnap the child and leave the country? Please, that’s more traumatizing than anything this Jenkins woman could have done. The fact that Miller was living with her for years before hand and that a judge granted custody places doubt on this story anyway, and the correct answer is to appeal, not to kidnap the child.
EDIT: The full story from the Boston Globe:
The Vermont family court gave custody of Isabella to Lisa Miller and gave Jenkins regular visitation.
Lisa Miller then returned to Virginia, became a conservative Christian, renounced homosexuality, and sought full custody of the girl.
Two months after Lisa Miller and Isabella fled to Nicaragua, a Vermont family court judge transferred custody of the child to Jenkins.
So not only did Miller have custody originally, but she denied visitation, and custody was awarded to Jenkins only AFTER she kidnapped the child. That sounds reasonable to me. A child doesn’t belong with a kidnapper.