Perhaps The UN Should Declare Force Majeure.

http://www.xinhuanet.com/english/20220123/c668fe15ef91435e86eec1922dbc9ba1/c.html

If US sanctions are preventing Iran from paying its UN membership fees. Then Iran no longer has to pay membership fees.

Allowing the US to impede Iran's participation in the UN.

Certainly isn't going to help the US learn that universal lesson.

It's the doing of the incredibly stupid thing. Which makes the humilating climbdown inevitable.