This is entirely the USPS exploiting their statutory monopoly. There is no other communications medium that the typical customer would accept that much junk fr

This is entirely the USPS exploiting their statutory monopoly. There is no other communications medium that the typical customer would accept that much junk from. If I got that much junk email, I would switch email providers and use one with a better spam filter. When I started getting robocalls, I set my phone to stop accepting calls from unknown numbers. If I got enough junk DM’s on a social media site, I would delete my account. But I can’t opt out of USPS. We are a captive audience delivered to scummy advertisers by our own government.