Comment by daemonologist

Most items on Amazon were until recently cheaper on Aliexpress (usually by 20-40%, but sometimes by 80%). The only exceptions were high volume non-Chinese-manufactured consumer goods, and food. This is where regular Americans might be affected, if they were buying clothes on Temu or whatever.

For me, most items on McMaster-Carr have Chinese equivalents available for 1/10th the price. This goes for many other things which are very "B2B" in the US but commonly sold to the public in other markets (PCBs, solar panels, power supplies, etc.). The quality might not be as good but a lot weekend projects were made viable by cutting out the middle man and/or cheap access to a larger market. (You can find some of this stuff eBay as well, at a moderate premium. Until recently most of it was shipped from China but there are plenty of importers with US warehouses on there as well.)