I know it's late, but I've just been struck by inspiration and before I chuck it in my mind as unfeasible or impossible I'm going to say it here and get the idea out there for others to mull over.
Whereas Judaism as a beneficial meme is in severe trouble in the modern world; and
Whereas some belief in the Jewish theology but without traditional activity in the customs has proven untenable after a few short generation as seen in the Conservative and especially Reform movements; and
Whereas the only available alternatives is to enter the Orthodox world in order to have a sustainable culture; and
Whereas there are many among the Orthodox who have severe doubts to what they have been led to believe and yet cannot feel that they can freely express their thoughts; and
Whereas the future of some continuous Jewish traditions and Jewish life are important to many Jews; and
Whereas excessive splitting into sects among the Jewish people is unlikely to be maintainable in the long term because the worldwide Jewish population is rather small and division weakens us;
A new sustainable non-Orthodox form must be created. I suggest a novel form of Judaism that can be an umbrella for the many disparate forms and may be acceptable to most or all. This would be an act-based Judaism. Total prax, no dox necessary. No dogmas, no fear of science, no dedicated beliefs, no heresy.
I introduce Action Judaism (tentative name only). The movement would support the continuation of traditional customs and practices, though perhaps with a few notable exceptions - details to be worked on later (perhaps a basic suggested prax that would be the minimum but allow other stricter forms for whatever the people feel most comfortable), but would claim no authority on metaphysical truths. Each individual can be free to speculate and theorize without fear of consequence. It would be supportive of bringing estranged Jews back into this sustainable Judaism. The focus is on bringing Jews back to Judaism but without forcing any necessary stories that they would need to accept.
How’s that sound?