The problem for low-value items is not the import duty. It's the delay of processing.
I am running an electronics development company in the EU. To us it's mission critical to be able to get devkits, samples, prototypes, spare parts etc within 5 days from China.
I would not mind having to pay $1 of duty on a $10 part. I would be in huge trouble having to wait for that part 30 days.
Also: As always, Trump gave nobody any time whatsoever to prepare. The US now suddenly will have to hire thousands of customs employees. New machinery to transport all of this. New warehouses for storing stuff that sits for customs processing.
You could not be more off here. This will turn out to be a gigantic disadvantages for huge bunch of the innovative parts of the US economy. In our industry, nothing matters more than time to get parts.
As you have noticed: All other countries have LOWERED de minimis, and they did this with 12-18 months of advance notice.
Thailand last year tried to get rid of de minimis. They reverted the decision after ONE WEEK.
You are completely underestimating the amount of the US shooting into their own feet AGAIN here. In these days of global shipping volume you MUST have de minimis a country, or else you will be de-coupled from global R&D markets.