Heh! Actually, although I'm in Argentina, I thoroughly endorse 墨子's defensive program: if every country is safe against attacks, then all the people will be safe, while if every country is vulnerable to attacks, then life will be bitter and filled with grief. So, just as 墨子's followers worked to improve the fortifications of the various states of China so that none could gain by attacking another, I think we should figure out how to reduce our collective vulnerability to this kind of drone-swarm attack.

Except that I think it's kind of impossible and we are basically doomed.

Minus the emotional wording, this has been the justification for large standing militaries in every nation state ever. I mean, it's the Dept of Defense here in the US.

Right, and the US isn't even a nation-state, despite the persistent efforts of certain reactionary groups to change that. But it's a backwards justification, because thousands of years of history show us that large standing militaries increase the risk of war, while fortifications diminish it.