hold up, I'm a "brown person."
Those people were trafficking drugs (as evidenced by the pallets of cocaine that fell out of their absurdly overpowered "fishing boat.")
I don't really care about extrajudicial killings of drug traffickers, as someone that has been impacted by them.
People love drugs. They really want to get hold of them. Someone is going to keep supplying drugs, no matter how many lackeys you blow up.
For most boats, it's not a straight shot to the US, they often refuel from boats at sea or utilize refueling points in Central America; or perform a handoff in Puerto Rico or the Dominican Republic.
They don't "need the fuel to get back," the boats are scuttled on arrival. The value of the boats and fuel is a rounding error compared to the value of the drugs.
Let's not even talk about the killing of shipwrecked people who are hors de combat according to the Geneva Convention. Even the Nazis during unrestricted submarine warfare had the decency of not murdering shipwrecked crews and passengers. We are truly in a wretched time when nothing matters anymore.