"This requires a lot of trust. The entire point of having banking infrastructure is to remove the need for trust. Like crypto, with no oversight, how do you know your local 'phone bank' is not a rug-pull?"
I think that a system that encourages trust among people is orders of magnitude better than the traditional banking. https://ourworldindata.org/trust
I enjoyed the movie, the idea of billionaires that cover their businesses around empty but positive words is remarkably close to our times. Also, incompetent administrations and politically correct media are well portrayed. The idea of a cataclysm like global warming denied by a lot of people in the USA makes me think to shout "just look outside".