That did play a part in why she lost but it was not the only reason. What dragged her down then are the same things hurting her now that sense of entitlement, the idea the rules don't apply to her.
Not really.
I've discussed this before, but it bears repeating. Why did Hillary lose the nomination in 2008?
Well, here's the dirty little secret, she got more votes than Obama did. But because of the way the Democrats allocated delegates, Obama got more delegates. Michigan and Florida didn't get any delegates because they skipped the line in the primaries, and superdelegates switched to Obama.
Yes, part of the reason was that she voted for Iraq, and the rank and file Democrats HATED "Bush's War on a Lie" at that point.
Another reason why a lot voted against her was because they looked at the Republicans talking smack about Vince Foster and Whitewater and Monica and all the other horseshit they brought up in the 1990's and said, "Do we really want to go
through that again?" Of course, electing the Negro made the Republicans even more batshit crazy.
Part of it was Hillary's own tactical errors. Letting Bill run off his mouth about South Carolina. Not having any infrastructure on the ground after Super Tuesday. (Allowing Obama to run up delegate counts in states the Democrats weren't going to take in November.)
But the more important thing was, Hillary didn't lose. Obama won.
I don't see anyone who could beat her this time out, on either side.