Literally almost every technological advancement we have today is because someone was trying to figure out how to kill someone more efficiently. From the slingshot and bronze sword all the way up to nuclear weapons and stealth planes. It’s not a boomer concept at all (nor am I one), and it surely will not be limited to that generation. See also: drone warfare, using aviation tactics very similar to WW1. What is old is new again.

You say “we live in modern times” like that somehow precludes our primitive tendencies, but that’s just ignorance, in my opinion. It’s like a beauty pageant contestant wanting world peace. It is a wonderful aspirational goal, but it’s not exactly realistic, either.