Another thing that most people do not take into account is that the factories that produce the raw materials for the shoes are also located, almost exclusively, IN ASIA. "Supply Chain" was such a buzzword over the last 3.5 years for a reason; production of the footwear from raw materials to end product is done nearly exclusively in Asian countries. Moving assembly of the shoes to the US only moves a small % of the process to US shores, and then gets hit with the biggest cost increases thanks to labor costs rising dramatically (which I am 100% in favor of, BTW. People should be paid a living wage). The facilities that produce the raw materials, the supercritical PEBAX foams, the carbon plates, the carbon rubber outsoles, are all STILL IN ASIA! The raw materials are not in the US in abundance, because we set up the infrastructure to develop and produce them IN ASIA.
I have worked for a top 5 running footwear brand for nearly two decades and can tell you from multiple years of development that the toothpaste isn't going back in the tube. Global companies have invested in the production and development infrastructure in Asia. Logistically, Asia is in the center of the world. Shipping times from Asia to EMEA, LATAM, APAC are all shorter than shipping from US ports.
Again, as someone in development: the $10 landed cost made me laugh. There's some fairly basic and widely know arithmetic to footwear costs to MSRP, and there is no company on earth, even Nike, that would sell a $10 landed shoe at $275.