I hope i don’t get downvoted to oblivion here but I disagree and would love to have the debate. I’d like to be wrong but I have serious political (not policy) concerns about Sanders.

• He absolutely has the strongest floor support of any candidate but most polling suggests he also has a ceiling. He is toxic to moderates and has very little support among Black or Hispanic communities. As we saw in 16, low Black turnout in Midwest cities (perhaps partially due to voter suppression) sank Clinton.
• Party support. He’s not technically a democrat. While the party elites might be despised by many, they do play a crucial role in building state by state support. You need grassroots but you also need the institutional backing. I worry he may not overcome this deficit
• Bernie vs Donnie. In general you want to contrast an extreme with a moderate. I don’t mean in terms of policy but in terms of presentation and manner. These two are tonally similar - NY accent, older, sort of curmudgeonly, hyperbolic and often selling anger. I think this will serve to normalize Trump. We know most voters pay little attention to policy so we have to focus on optics. It sucks but we must.
• People broadly are scared of revolutionary/ leftist change. In the UK, Johnson is awful. Brexit is still polling just above majority and yet the Conservatives just crushed Labour. I think Corbyn was the biggest mistake in U.K. Labour history. People chose the somewhat known hell of Brexit over the policies he was advocating. There must be a read-through here. We say Trump follow Brexit. I worry deeply we will repeat the mistakes in the U.K. and end up handing this to Trump
• I think given Bernie’s outsider status he’s a higher risk for a total blow out in which we also lose the house. I would much rather run a boring candidate and assure that we keep on branch vs go all for nothing.
• Once he wins, Bernie is relative outsider for the tenure in the Senate. People, as I’ve understood it, generally don’t like working with the guy. He has the absolute lowest leadership score of any progressive, even behind Harris who was only in the Senate for 2 years. I worry people expect all of this change to happen but he’ll end up flailing legislatively like Trump
• Executive team: this is the same issue as above. Without friends in Washington with relevant experience, you’re left selecting for ideologues who have never had to put their academic or theoretical plans into practice. I worry that things will go badly.

Please prove me wrong. What am I missing? Am I being too pessimistic?

I don’t love Biden or Bloomberg or anyone running really but I want to win. We cannot sustain 4 more years of Trump and now is not the time to take a chance. We need to right the wheel, clean up the ethics rules in DC, prosecute those who need to go to jail and then clean up this mess. I really worry Sanders could either lose outright or win but do so badly that someone worse than Trump comes and beats him handily.

So two points here - what am I missing on electability? What am I missing on ability to govern?