economics is a lot of made up theory and not hard science. you won't get any of his smarter supporters replying because even if they did you're showing an inability to model best-case. i mean you're personally at a loss?
if you took the average supporter of both sides neither seem smart. the clips they have of both sides is shameful. but those aren't the people implementing the policy, but they both support their tribes.
if you really are interested in understanding how they think you couldn't do worse than this:
https://www.hudsonbaycapital.com/documents/FG/hudsonbay/rese...