Well, good thing the USPS is not a private company. It is a GOVERNMENT SERVICE. And, since you asked, NO, government services don't MAKE a profit. For example: The U.S. Military - has YET to make a profit. In fact, it operates as a LOSS amounting to the single largest line item in the U.S. Budget.What other company loses millions of dollars a year and no one ever says anything!
If I had a UPS or Fedex store near me I would just use them,but the nearest of either is an a hour and a half away!
Anytime you want to imagine life without the USPS, take your little letter over to Fed EX or UPS and see how much THEY charge to take a single letter across the country. Then multiply THAT times how many bills you pay each month or items you order etc. etc.