Why is the United States postal service so terrible?

Until Trump it was the envy of the worlds postal systems 

Under Biden it will be again

Because of that ***-brained cunnt that trump put in charge but Biden is VERY soon to appoint the 3 vacancies who can FIRE him.  Stay tuned.  

WTF? You are complaining because of a delay?? How old are you? This stuff happens. Deal with it.

Delays happen due to a number of reasons, logistical errors, weather, mechanical problems. It simply happens.

The USPS is the best there is on the planet. 

@Robert: I had an order of networking equipment worth thousands for a business end up on the door step of a resident several miles away. Delivery done by Fed/Ex. I was LIVID!

Because the previous administration did whatever it could to reduce capacity of the post office to do their job.

Actually, the USPS is one of the world's best. Millions of pieces of mail, and YOURS gets delayed.

Trump stripped the post office of funding. Also, half the country is snowed in, airports are closed, the trucks can't transport the mail. 

It's obsolete.  We have it top heavy with management and it has very expensive work rules.  In 2021 the private sector (FedEX/UPS) is much better able to handle the packages.  The post office can't survive delivering Grandma's birthday and Christmas cards twice a year.   Since Email the post office is mostly unneeded and unnecessary.   If nothing else, cut it to three days a week to save some money, or let the private sector bid on delivering mail.  We don't need the post office.