There were several factors, of course, and I'm loathe to admit that the a common thread of motivation of Trump and Sanders voters is they were all thoroughly FED UP with the status quo. That emotion then separates into quite different directions.
What else torpedoed Clinton?
Clinton hubris was a big part.
Her personality and unlikability, perception of dishonesty -- all that stuff that made her unpopular. Her "public and private policy" statement.
Some say being a woman was a knock against her, but I disagree completely! I'd've loved to have been able to vote for a woman, and I'm grateful as hell that HRC isn't the stinking blot historically registered as the first woman president. I hope in my lifetime a woman of substance
will claim that spot. I almost know Bernie will choose a WOC as his Veep. and I can't wait to see who she is. She'll likely be the first woman president, and one we can be proud of.
Some say Comey hurt Clinton. I say he let her off with a wrist slap for serious security crimes that others are jailed for - and then came back for sloppy seconds. Thattiming was damaging to her, but I think the die was cast by then.
She was a lazy campaigner and insulted a lot of potential voters with specific comments like "deplorables" and something shitty she said about coal or WV...?
Her Weiner connection.
Her "white noise" speech.
Bernie's incredible, surprising popularity - which was a symptom of the anti-status quo movement.
Her outing by wikileaks...
Despite all that, if Clinton hadn't requested of her minions in media to take Trump seriously and elevate him, he would not be president. He would've been shunted aside like the carnival barker he is and some other idiot would have beaten her.
My opinion, anyway.