Where Are All The Courteous Drivers

Lately I have been noticing the rudest drivers.  Not allowing people coming down the onramp to get on.  No signal usage.  Turning right while a pedestrian has the right of way.  Going to slow or way to fast for conditions.  What is going on?  If you are running late, you should have left sooner.  While turning, how about a signal.  Pedestrian crossing, let them cross.  We are in such a hurry that we have forgotten or just don't care about basic drivers etiquite.  Slow down, observe and pay attention.  It's not just your life at risk while you are behind the wheel, we all are.  Let's stay safe.