Most of your post is incorrect.The political nitwitery and conspiracy theories notwithstanding, what is being seen is the result of a poor-conceived inventory management system called "just-in-time". It's hardly a new concept, but it really took hold in the US during the 1980s (the "Decade of Greed"). In its basic form, the end receiver keeps little to no inventory on hand and reorders inventory as needed—often multiple times per week. This works when there is no disruption to the supply chain, but, as is seen, it completely breaks down if the supply chain has issues (transportation of goods, manufacture of goods, etc.).
JIT is a warehouse function not end user.