It follows the logic of Bernie isn't a Democrat.
Again to Bernie being a Democrat is having certain principles.
Again, Bernie has never been a Democrat. Has never (until now) run as a Democrat, never registered as a Democrat, never self-identified as a Democrat, and has at times stood in opposition to the Democrats. His lifelong stance of remaining outside of the Democratic Party would indicate (and did up until he needed them) that Bernie's principles and the Democratic Party principles could not be reconciled.
But one must value principles and not merely the desire to win with people who will never introduce any principles except wealth gets to make all the rules to understand.
Which again leads me to the fact that Bernie has ditched his principles so that he can win with the people he used to balk at associating with. Principles, my ass.
If only principles were of value to you. You might understand.
If Bernie had stuck to his principles and ran as an independent, that would be admirable. Instead he chucked his principles and got in bed with the DNC. Then when they were less than enthusiastic about his politically expedient and insincere advances, he whined that he was being mistreated. Bernie's the nerd who goes back to the high school reunion all full of himself, hits on the prom queen, and then gets indignant when she won't fuck him.
It is the party that has crawled away on it's knees in search of money from rich individuals.
How does "I want to bring the Democratic Party back to where it belongs" violate any principles?
Again, he's not a Democrat. As such, what he wants to do is not bring them back to some previous version of the party...no, Bernie - drunk on cheap keg beer and armed with the information that the prom queen is unhappy in her marriage - is trying to bring the Democratic Party not to where it belongs, but to where he thinks it should be.
Even though he's never been part of the party, he's decided that not only should he be their nominee, but he should be able to remake the party in his own image.
Is it any wonder the Democrats are not entirely on board with this?
FDR and The New Deal were not a fantasy.
You're right. They were real. And you missed the point. FDR actually accomplished something. The things he did (New Deal included) were actual solutions to actual problems. The fantasy comes in at the point where you imagine that Roosevelt was just a precursor to Sanders, and that Sanders has a snowball's chance in hell of getting any of his pie in the sky proposals passed. Bernie has been in DC for 25 years now and hasn't done shit.
Again, you've been suckered. Apparently one of your most important principles is to blind yourself to the fact that you've been duped.