[throwaway34241]

Yeah that part isn't very intuitive (at least to me). This was actually proposed as part of a Republican tax reform attempt back in 2017 [1] but the idea was taken from Alan Auerbach who's the director of the tax policy center at UC Berkeley.

A lot of high profile economists on both sides of the aisle seemed to think the general idea checked out including Krugman who specializes in trade and is not known to be a cheerleader for Republicans generally [2]. Of course there was probably disagreement over the absolute rates but the general idea of it being a way to fix the tax haven problem while also being trade neutral seemed to be pretty widely accepted (although some people weren't sure if the currency adjustment would be immediate).

Unfortunately the Koch brothers and some other corporate groups were against it so it got killed, and what got passed was a bill that paid for a corporate tax cut by just borrowing money and didn't address the tax haven problem.

[1] https://en.wikipedia.org/wiki/Destination-based_cash_flow_ta...

[2] https://krugman.blogs.nytimes.com/2017/01/27/border-tax-two-...