Its funny to see folks lose their shit at Bernie Voters, when the far larger block of votes Hillary lost came from Obama voters.
Specifically, 4.4M Obama voters slept through 2016, primarily in the Midwest, in response to Hillary's failure to campaign or advocate for their interests during her time as Sec State and on the trail.
A campaign that absolutely obsessed over winning the Deep South, dumping millions into state coffers from South Carolina to Arizona, virtually ignored the pivotal swing Great Lakes states and ceded that territory to Trump.
Combine this with the Dem Party's chronic inability to advance any meaningful election reform (no DC statehood, no national motor-voter or mail-in ballot protection laws, no effort to beef up the DOJ's civil rights department or overturn felony disenfranchisement, no constitutional ballot initiatives to repeal the electoral college, nothin', nothin', nothin') with a SIXTY VOTE SENATE SUPERMAJORITY, and she was lead straight to the slaughter in November.
Like, if you really want to say who stabbed Hillary in the back in 2016, it was the same guy who kicked her legs out in 2008. Obama failed to secure a national majority of Democrats through the end of his second term. And his successor paid the price (along with everyone else who hate to eat Trump's bullshit for four years).