I don't think any one is denying the numbers that some Bernie voters either switched teams or didn't vote at all during the general election. We are arguing that the DNC needed to do more to retain those voters and convince them that Hillary was either a better candidate or worth their time which they obviously didn't do it. Y'all are blaming Bernie voters for being disloyal, which I suppose is fair enough, but I am blaming Moderates in the DNC for not doing enough to win those votes. I, for one, don't think that a party owns its voters and the party should work to sell its political philosophy and convince people to support it.
I'll also say, anybody arguing that the Party should go moderate and nominate from the middle to attract mid-western rustbelters, while at the same time complaining that Bernie voters are disloyal, should probably redo their political calculations.