The primary issues are a combination of nature vs nurture. The age of argument, the solution has always been some combination of both.
But when you look at our western society over the past 60 years or so, you see that -fundamentally- the nurture part of the equation is being heavily influenced by capitalistic forces. For example, news used to be once a day, then 3 times a day, now 24/7/365. There isn't more news now than 100 years ago, so how do you feel all that time and how do you keep someone engaged? (If you have been paying attention, you know the answer is selling fear, sex, violence, and other negative emotions are traits of the human species.)
But really, the easiest way to counter this toxic mindset was said best by mister Rodgers: just look for the helpers. Look for the guys running into the fray when everyone else runs away... Those people are just as human as you or me... They are the true character of the human species. For we are a communal species that depends on one another, we always have, we aren't a bad species... We are just letting our man made systems bring out the worst.