Because building 'GPS', 'LLMs', 'food preservation', 'vaccines' and 'off-road vehicles' is not 'arbitrarily different' from building 'cruise missiles' or 'F22 fighters'.

They are completely different things.

'Tech' that can be used by the military', and 'weapons' are not 'arbitrary labels'.

HN is the only place in the world where someone would try to conflate the two to make a point, I don't think it's reasonable.