It would probably have worked just fine if the richest/biggest CEOs didn't jump to be first in line to appease Trump?
If your business relies on the USPS as much as Amazon's still does, you want to have a seat at the table when the administration decides how they're going to kneecap the USPS. Same with tariffs, when half of the crap they sell comes straight outta Shenzhen. See also NASA and Musk. Being locked out of the rooms where these decisions get made is potentially fatal for them.