All Trump supporters are actively or are in denial about/support hatred, by having voted for Trump. I can point you to Twitter. Look up any Bernie Supporter, cross-reference them harassing Daisy Ridley, Kelly-Marie Tranh, Anita Sarkeesian,Michelle Wolf or any number of non-CisHetWhiteMales, and there's all the proof you need. No numbers required.
He needs to actively support and endorse Anti-NRA efforts, not make millions AND a government check, and apologize and make efforts to reverse that exact decision you are talking about, since that is one of his unpardonable sins, among others.
If she's not black, red, brown or yellow, she's white. And working for Bernie pays, as does politics in general. Take the hint.
Should I add that he's also a hypocrite who champions socialism but profits off of bogus real estate deals he and his wife make like the capitalists he claims not to represent?
Comey's attack on Hillary+Hatred for non-whiteCisHetMaleChristians X BernieBros personalities demonstrated time and time again on social media=Trump's America. Put 2 and 2 together.
See the above for why he's toxic. For the second, you can choose who you associate with. Not rejecting and condemning the Bros outright says that you endorse their behaviors. Spinelessness towards his current or former supporters hatred and hypocrisy regarding Socialism are his calling cards. She should condemn Bernie if she wants to get anywhere in Congress, BTW. Bernie is now blamed for Hillary Clinton losing via the Bros, and if you want to swing mainline Democrat votes on issues, you have to be both anti-Bernie and anti-Republican. And remember what I said about unpardonable sins? Try feeding your rhetoric to a victim of hate crimes that used guns because Bernie voted yes on that bill.
He still hasn't apologized and shown regret for the times he supported them during critical gun control votes, though. Nor has he done anything significant to help shooting victims directly other than do his job(and poorly)...He SHOULD donate his Senatorial money to victims(he doesn't need it) of guns...and his Bros and Bras outright voted FOR Trump because a black man was president, and a woman was going to be one...they couldn't have that now, could they? They'd settled for a Jewish person as long as he was a rich white cis het man...but denied that, they doubled down on their sexism, racism, homophobia, transphobia, Islamaphobia, misogyny, birtherism, and ableism and voted for someone who would let them have all of that and a side of fries...as a bonus, they could go back to antisemitism, too!
I'm pretty sure Sanders explained his votes that seemed to align with the NRA. One bill in particular he voted against, according to his words, would have held gun sellers liable for the actions that their customers took with their firearms. You're being ridiculous, he's condemned the NRA multiple times and has used his extra donation money to support progressive candidates all across the U.S.
And the argument that Sander's supporters ruined the election for Hilary only makes sense if you presume that Hilary was the good and proper candidate to win the election. If I were to say that Hilary's candidacy and her supporters ruined Bernie's chances, it's just as legitimate of an argument.
He also denounced his toxic supporters:
https://www.huffingtonpost.com/entry/sanders-condemns-bernie-bros_us_56b75a28e4b08069c7a79b1e
Put the crack pipe down.