Why I'm Not "Feeling the Bern"

Judging from the number of diaries penned by Bernie “supporters” on the rec list lately that say very little about Bernie and a lot about Hillary, I think it’s finally sinking in that Bernie is not attracting the amount of support needed to win the primary. 

Oh sure, he’ll win a few states, most probably states nearby Vermont that have similar voter demographics, like New Hampshire or Massachusetts.  Polling is showing Bernie holding his own in New Hampshire:

But in states like Iowa and South Carolina, Bernie has not been making any progress beyond a couple of blips in the past few months:

So what could possibly be holding Bernie back from gaining more supporters? Here are a few of my thoughts as well as input from others around the interwebs.