story
(I don't know anything about the company we're discussing here, but this is a weird premise.)
The problem is that anything made for defense is almost inherently useful for offense, and the US is not the most trustworthy government right now. It's, sadly, not inconceivable that an automatic turret mounted shotgun could be put to use against human people across the globe, or even human people who are citizens of the US.
The comment you're replying to is pointing out the oddity of being anti-good-thing because somebody might one day invert their company's mission entirely.
How do you suggest we stop the lessons from the first major drone war from spreading? With hope? Prayers? The terrifying thing about it is - the US is actually already behind on this technology, China can build 1000x more drones than the whole West.
It's a borderline certainty that 9 Mothers employees will eventually contribute to the death of an innocent protestor or journalist that opposed the state.
Terminal society this is.