This is misleading. The USPS has an operating budget of about $70 Billion dollars per year, and loses about $150 million per year as a result of lopsided "terminal dues" under the UPU. So about .2%, and not all of this is due to China. While there is legitimate fear that this loss will continue to increase, relative to their budget it is not "a massive amount of money". This link has more complete numbers: https://www.lawfareblog.com/withdrawal-universal-postal-unio....