Ah yes, the many years down the road argument. We will never be able to tell for 50 years, according to Rees-Mogg. I have no doubt the usual suspects will just finger wag at something else even then. It’s always someone else’s fault.
I’d have more of a respect for “it was never about economics” if those arguing it never tried to dismiss any arguments against economics from Brexit. The “it was never about economics” suggests that economic hits don’t matter, but then they argue against economic impacts anyway.