(game meaf from necessary population control = ethical imo)
At what point do you consider population control necessary? The inconvenient truth is that the worst instance of unsustainable overpopulation is us humans. No other species could come close to the harm and destruction we cause. Making special exceptions for ourselves while we are the worst offenders by far would be very hypocritical. If you consider population control ethical, you ought to consider school shootings, murder, etc. ethical as well.
I think we need to find better solutions than going on killing sprees.