That's fair enough but it's an arbitrary place to draw the line. If you pay tax in the US then you build weapons. If you live in a country that doesn't either build weapons or pay someone else to build them for you, then you'll soon be getting told what do by some country that does, and building weapons is one of the things they'll probably tell you to do.
After what went down in Ukraine I struggle with the idea that folks can still find military tech inherently problematic.
It's currently the only thing preventing a liberal democracy from being overrun and genocided because a tinpot dictator with nuclear weapons woke up on the wrong side of the bed back in 2022 and said "I want, I take."