“Glad you are so willing to tank so many businesses that depend on it for billing, payment and product delivery...”
I have a real estate business and manage to do quite well with very minimal use of USPS.
If I can do that with a small business, everyone else in business should be able to do so as well.
If not, they will fail and someone else will enter the market to fill the void.
....and if there is a market for those services a private company will perform them.