Though I largely agree with your post, your comments are non sequiturs.
Will Sanders get the Dem nom? if not, who will? I have no idea.
Fair Enough.
The Democrat Party is in such disarray right now and I think it is just the tip of the iceberg.
The leadership are basically a bunch of septuagenarian and octogenarian, power hungry corporatist sell outs who are doing everything in their power to not give up the reins and at the same time undermine/stifle the sizable populist Pro-Bernie wing.
Pelosi herself has been out in the past few days making excuses for Al Franken and John Conyers, which of course will be used against them in the future with memetic warfare from the Right and it certainly will not help them with a large bloc of their female constituency.
All these things are doing is causing an even greater resentment between the two camps and I just can't see a situation where they come together without major blood being spilled, figuratively speaking.
Can an 80 year old Bernie heal these wounds enough to unify everyone and mount a successful campaign. I don't know. I have my doubts.
BUT REGARDLESS, we must take in The Trump Factor.
1. The Legacy Media and their influence is becoming weaker by the day. Time Magazine is being sold. The Guardian is begging for donations. Outlets like CNN and MSNBC are being exposed and discredited constantly. The alternative pro-Trump media becomes stronger and stronger. Andrew Breitbart always talked about the Narrative and the importance of it. This is all beginning to work heavily into Trump's favor.
2. The Economy. If the economy is humming along right around 4% it is going to be incredibly difficult to vote that sort of prosperity out of office. The economy under Trump has been FANTASTIC his first year. If you are looking at your investment accounts and it is bursting full of profits are you really going to want to vote that out?
3. Trump's mic skills and political tact are the greatest we have ever seen. Anyone that gets on stage from the Democrat Party will be buried by him. They will be laughed at. Embarrassed. Alternative media will step in with support and magnify it even greater. 4chan and reddit will put in work as well.