I'm not sure I want to believe what's being presented here. That a policy of systematic abuse and mistreatment of refugees is an effective deterrent and corrects incentives, halting the influx of refugees who would have otherwise died en mass on their journey? To believe that this is the best solution even under the guise of pragmatism and a single minded blind belief of utilitarianism is difficult for me to digest.
I'm totally open to other solutions.