Imagine if they were consistent and movies/tv/video games were also whitewashed of blood too. What a miserable media world we'd be in.
I can remember how disappointed I was when I bought home Mortal Kombat for SNES and there was no blood. Truly horrifying.
The US armed forces, with close to 1.4mln personnel, is one of the largest employers in the country.
The bloodlust is easy to explain. The tribe better at war survives. Veneration of honorable warriors runs deep in our veins. Sales for Top Gun, Marvel movies, action games continue to soar.
The puritanical outlook developed to create stable monogamous families. That bit of artifice is dissolving now. More polygamy means the top men hoarding reproductive access, which historically leads to instability. Sexual socialism was an interesting run, but with the demise of religion, I'm not sure how we could save it.