This is about to change.
My partner has been an attorney with the USPS for 27 years and retires at the end of January.
She says the free ride is just about over although I don't think an actual date has been set.
Here's a great example.
I bought this PC board from Amazon for $2.79 delivered from China just to see what it was.
Part looks legit; not sure that the US could source the components and build the part much let alone build, ship, and make a small profit.
https://www.amazon.com/gp/product/B07R6QC89J/ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&psc=1
Here's an excerpt regarding USPS shipping to and from China:
"Did you know that it costs significantly more to mail a package to Boise from Boston than it does from Beijing?
According to the U.S. Postal Service, it
costs around $20 to mail a small parcel weighing 4.4 pounds from one U.S. state to another, yet mailing the same package from China only costs about $5. Millions of Americans who have purchased consumer goods online from Chinese sellers for a few bucks, shipping included, have likely noticed this disparity first-hand.
This shipping differential is the product of the U.S. government subsidizing Chinese shipments. The government
estimates USPS delivers Chinese goods at a 40% to 70% discount, losing money on each package it delivers.
This unfair dynamic hurts U.S. small businesses, whose bottom lines are increasingly reliant on e-commerce, because it allows China to dump its often-counterfeit products in the U.S. market at an artificially low cost. And it sticks taxpayers with the tab because they are on the hook for bailing out the government-funded USPS. Yes, you read that right. Uncle Sam allows this to happen and is ultimately to blame. With a friend like this, who needs enemies?
The Universal Postal Union, a United Nations agency that sets postal rates among its 192-member countries, dictates USPS's artificially low rates. It bizarrely [Invalid or Expired Link Removed] China – the world's second-largest economy – with developing nations like Gabon and Fiji into its third tier of shipping rates, which are just a fraction of what the developed world must pay.