Gilmer, glad you got a good sleep :-). You surely needed it.
Less humility - yes. I think it's everywhere, not just US. OTOH, some of it may simply be that people are less inhibited about expressing what they think. And helicopter parenting is the norm these days. We are living in difficult times, at least partly resulting from the concentration of wealth in the hands of a few, IMHO. Not an easy world for our children. I recently read in the NY Times about the problems with tourists in many countries taking nude selfies at popular places to visit - and it's no longer just US citizens!