Would any other Americans prefer to have just 3x/week delivery and still have cheap shipping internationally? This seems to be more about propping up the USPS’ inefficiencies at the cost of higher prices for consumers.
I had a neighbor for while who worked full-time for USPS. Postal workers provide reliable service, and are able to earn a livable wage without driving themselves into the ground like the contractor delivery services. I like that USPS is a piece of the American infrastructure fabric, and I like that it employs local people in a sustainable way.
I do not consume nearly enough things that require international shipping to value cheap shipping more. And even if I did, the ethical implications involved with destroying decent jobs for Americans and losing a piece of our national delivery network would stil not make it worthwhile sacrifice in my book.