Since this is fiction (thankfully, seeing how many might allow the superhappy's the chance they need to escape the box)... an alternative ending.

The Confessor is bound by oath to allow the young to choose the path of the future no matter how morally distasteful.

The youngest in this encounter are clearly the babyeaters, technologically (and arguably morally).

Consequently the Confessor stuns everyone on board, pilots off to Baby Eater Prime and gives them the choice of how things should proceed from here.

The End