I can't morally justify using overwhelming force against pirates who genuinely may not have any other way to feed their families.
To me, a prerequisite of that kind of force is offering another viable way to get food. We have to give them some kind of plan B before launching Operation Scorched Earth.
I have no idea if it's politically viable to kill the warlords, but that would be my plan A. Kill the warlords so humanitarian aid can reach the people, stabilize the humanitarian crisis, and then we start cracking down on the pirates.
The cynic in me says killing the warlords won't help, though. It'll just be a new set of warlords. At the very least, we can send a strong "don't interfere with humanitarian aid" message.