The USPS is losing money hand over fist delivering the unwanted junk mail

The fact that you think the Postal Service loses money delivering junk mail shows that you don't have any idea what's going on.

Junk mail is a massive revenue source for the USPS. According to the congressmen I've spoken with (Yes, I actually have done that), junk mail is hugely revenue positive, which is why it's allowed to continue.

USPS' financial problems largely have to do with pensions and other non-delivery issues.

https://www.gao.gov/blog/us-postal-service-losing-money-what...