Well, I seem to have a new bff at OurRevolution. He answered my response to his response, and suggested I go to this site. If you sign up, as I did, you will probably get a message indicating that they are not quite ready for the rollout, but I think it will put your name in the system. They are concentrating on getting people involved locally, where they live, which is just right, in my view. They are trying to be as inclusive as possible, and my guess is that a few weeks of President Trump will persuade those on the left that this is the time for a United Front. [Lord, I have been through this before.]
So follow the link, sign up, and wait for the big rollout.
This is the best news I have had in a while. Bernie really is the only person right now with the name recognition and following and money-raising capacity to make something national happen.
It isn't romantic, but it is the best way forward.