“So we manage to convince ourselves that the evidence speaks so loudly, so emphatically..”
Maybe you have simply convinced yourself that the evidence speaks so loudly, so emphatically that the world is becoming a intolerably, uniquely partisan place.
“ But the world today feels different. Everything feels angrier.”
Ask yourself this, how much of that evidence comes from the media? What real world proof do you see of an angrier world? Do you actually see this around you or just on facebook and the nightly news? I think you might find that the thing that has changed is what is being reported, not what is happening.