I fail to understand what's so "revolutionary" in "buying cheap stuff from China for resale online," and being more cost conscious than others at that? Most 3r

I fail to understand what's so "revolutionary" in "buying cheap stuff from China for resale online," and being more cost conscious than others at that? Most 3rd party merchants on Amazon still ship by regular post, generously subsidised by US taxpayers. Some of them ship by Sunyou. Sunyou just airships everything to US, and then sends by bulk post at commercial rates from there. The few merchants using "fulfilment by Amazon" still have to get their stuff to USA on their own. Global supply chain service is only available to sellers selling to Amazon itself. That Stratechery guy barely understands about what he is writing about.