What happened around 2010 that might have precipitated whatever changes you’re thinking of?

Tumblr? Cultural shifts from social media started to gather momentum roughly around that time.

There was a lot for people to be angry about, particularly the quagmires in Iraq and Afghanistan that the Bush administration got us into as a knee-jerk reaction to 9/11, combined with the 2008 financial crisis and Wall Street public bailout that culminated in https://en.wikipedia.org/wiki/Occupy_Wall_Street

None of those events were the focus of the cultural shifts I'm referring to.

Maybe you should be more explicit about what you think really happened.