Vance is making this idea popular/mainstream again lately, I wonder why? The US will predictably lose reserve-currency status as a consequence of losing all the rest of the trust and good will available to her, so it's time to make it seem like that was the plan all along.

Sure, there was a serious conversation to be had about this at some point, but it was probably before stacking up tons of unsustainable debt that directly depends on that part of the shell game. And there are many things that can/should change, but in a certain way and at a certain time to avoid pain and chaos. Arguing "this was always bad for us, fuck it" is kind of a pattern now, right? When someone wants to change some things, great, everything sucks. But when someone wants to tear down every status quo, and especially the ones that they apparently benefited from while saying "everyone after me doesn't need it", then it's a pretty clear sign.

US is now a lot of crazy old people finding new ways to eat their children and trying to see the world burn before they check out. They created the bulk of the debt, benefited from it immensely, propped it up with collateral that was always kind of imaginary, continue to increase the debt. Not great, but now we are also proposing to just destroy what's left of that thin collateral? I don't know how to explain that with greed or stupidity even, it just seems like spite.

Nothing there explains why it's a bad deal for the middle class.

The middle class actually benefits the most from this situation! More goods, more government services, etc. How much more? Just add up all the trade deficits, that's all benefit accrued almost entirely to the middle class.