Who else could've cost Obama yesterday's victory?

Boy, I keep hearing from all over the place that if it wasn't for those meddlin' blacks, Clinton would've won big yesterday!

Yes, it's true. African Americans were a big component of his winning margin in NC and paper-thin loss in Indiana. But who else was a big component? Let's look at some other demographics Obama got, with the percent

                             % of vote  % for Obama
IN: People with college degrees  35       56
NC: People with college degrees  44       57

IN: First time primary voters    19       69        
NC: First time primary voters    22       60

IN: Independents                 23       54
NC: Independents                 19       45*

IN: Liberals                     39       56
NC: Liberals                     42       63

IN: Urban                        33       60
NC: Urban                        27       66

IN: White 17-29 year-olds        12       54
NC: White 17-29 year-olds         8       57

IN: All 17-29 year-olds          17       61
NC: All 17-29 year-olds          14       74

IN: 17-64 year-olds              86       52
NC: 17-64 year-olds              80       60

The 17-64 number is particularly stark, but there are a ton of demographics that have voted heavily for Obama. Anyone under 64, first-time voters, young voters, urban voters, educated voters, etc. What about rich elites? Actually, Clinton won those in Indiana (52% of those making over $100K, which in Indiana, is a lot).

I should go around talking about Clinton's "non-senior problem". It would make far more sense, given that they're about 80 percent+ of the electorate, than bizarrely fixating on race as though it's the only factor at play.

(*) North Carolina is only the fourth state in which Clinton has won the independent vote.