Send them to a null address or commit to burning them in software. If they can restore the reserve, they could remint them.
I'm a crypto bear (with modest crypto holdings for diversification), and I think this is an opportunity for these folks to step up to the plate and show they can meet these sorts of challenges. If you can successfully navigate a bank collapse, then maybe you deserve a seat at the table. I'm not holding out my hopes for USDC though.