"Without such technology, war wouldn't be profitable. Without the profits, there would be no incentive to fight."

This is without a doubt one of the most backwards ignorant things I have ever read online.

It might come as a shock to you, but humans have been killing other humans since the stone age. And, as time has gone on, it's become less and less likely for a person to die violently, at the same time that arms technology has advanced.