>>516640605
The hellfires are cheap. Like, really cheap. But we're also using these drug boats as an opportunity to test out all sorts of other weapons that we want ready in case of China invading Taiwan, and we'd need to test those anyway. It's good practice for our troops anyway. Gets them flight hours, gets them real world combat experience. They're checking off quals.
The drugs on the boats are worth a lot more than the weapons we're using. And it prevents those cartel members from ever working again, and discourages other people from getting involved in the smuggling business if they aren't already. Drug cartels will have to offer more money for the increased risk. Eventually if we're good enough at this they may not be able to find anyone anymore, because it's a guaranteed death within days of joining up. We're not fighting an ideology, but a business. Random fishermen don't want to martyr themselves or fight the American infidels, they just want to make some quick cash for their families. If they can't actually make that cash, because they're dead, it's pointless and they won't do it.
Now consider the opportunity costs. If we take these people alive, we have to prosecute them. That's way more expensive than the missiles, too. That uses up a lot of time and money that could be used for prosecuting criminals who are already in America. It's very costly to import new criminals for prosecution when the alternative is just not allowing them in to begin with. It means more criminals go free in America for lack of prosecution resources. It also means longer wait times for federal lawsuits to go through, at a time when we are having a lot of big political controversies in the federal court system. Rather than gumming up the works with some 3rd world browns, we can just blow up their boats.