You are wading in a lot of rising tidal pools of information there. I appreciate you sifting through it. The biggest reason I repetitively push VAT with some kind of UBI is for a direct feedback mechanism. If we want people to behave a certain way, then pay them to do so or charge them to discourage it and use the money to improve that process. "UBI" can be a civilian engineering corps recycling materials, or education and apprenticeship corps teaching technology or regenerative agriculture. Growth or Degrowth depends mostly on our sense of what wealth and value are outside of prices and currency (Informed intention vs ignorant Invisible Hand). As for movements: if you think that the solution starts by raising money to build an organization, you're likely part of the problem.