As you know Al, I voted for Hillary and am pretty much a down the middle independent .
In my observation is comes down to basic tolerance vs full embrace of many cultural issues.
The gay rainbow lighting of the White House, was too "in your face" for many folks.
It wasn't that big of an "in your face" moment, but the fact that the White House didn't really respond to the Dallas Police massacre kinda was a slap in the face to Americans.
The Obama admin had no issue quickly getting behind Baltimore protests, gays, Black Lives Matter, etc.
It took a while, if I remember correctly, for the White House to even acknowledge the whole "Blue Lives Matter" movement thing, and that's the shit people don't appreciate