Bannon didn’t start anything. Brian Kolfage started “We Fund the Wall” in 2018. He raised $9 million. Bannon came on later to advise and “help” with the money.
FWIW, if you think secretly funneling money through a shell company to avoid exposing that you about lied saying you weren’t taking any money while taking money is a technicality, it is indicative of the decline of Christian values in the country. When someone on your team steals, it is still theft, not a technicality.