[spacefight]

Your argument reads to me as "people kill people not guns".

Yea I know, morale is a difficult topic these days.

[s_q_b]

That's trite.

Your argument is essentially "engineers at steel plants make steel, which can be used to make guns, which can be used to kill."

At some point, the chain of causality is so remote that assigning unequivocal judgments of evil becomes logically absurd. Are port scanners evil now too?