Steve
I have a agree with much of your essay. We should have been making some of these moves 40 years, but we didn't.
As a former active party member, I saw politics as "dysfunctional." So I quit.
I would say that this your party would be subject to the same psychological dysfunctional as current parties. I have written an article on this situation:
https://medium.com/politically-speaking/life-inside-a-political-party-2aaef1501437
Somehow, I invented another kind of democracy, one without political parties.
https://medium.com/p/cf48e4b4a1eb
However, there are new skills we have to first. So my book outlines these skills and how to move from HERE to THERE.
Feel free to take a look. We need to move beyond political parties.