I was reading the works of evolutionary psychologist Jared Diamond a while ago and it was a huge eye opener for me. He had all this compelling evidence that humans are actually getting LESS violent as time goes on.
Oh sure, it's hard to believe when you watch the news some nights, but it's all relative. In Bronze Age societies (we're talking Biblical times here) the usual rate of loss for young men due to violence was...get this...a minimum of 40%! Diamond does the math for you; I can't because I suck at math.
Studies across the board say the more primitive the society, the more violence, the more death from violence. Even WWII and Viet Nam, the most violent, worldwide conflicts in human history, did not have a 40% loss of males in their prime due to the war and associated violence. It was about 10%, something around that.
That's not a statistic you'll be reading in the Watchtower. Because it doesn't support their ideas that things are getting worse and worse as time goes one. Things are CHANGING, and certainly, humans will have to keep changing with them. The climate, energy resources, how we grow food, what we eat, what we wear, what kind of houses we live in, our transportation, all those things will have to adapt to the changing conditions of the earth and technology and always have. But, that's not equivalent to things getting worse. Unless you find change frightening, and yes, most people do.