For example, look at what happened to Sony - they were a darling of the Consumer Technology space and the Apple of the 1990s-early 2000s, but because they concentrating on the Japanese market at the expense of the global market, they fell drastically behind in innovation.
A similar story happened with Nokia, RIM, GM, etc as well.
Competition from players like BYD, DJI, and Huawei has helped incentivize innovation in the Li-on Battery space (eg. Panasonic, Tesla), the low budget drone space (eg. Andruil, Skydio), and 5-6G sector (eg. Cradlepoint, Qualcomm)
An insular America is an uncompetitive America. An uncompetitive America is a weaker America. A weaker America opens political vacuums from the Red Sea to Central Africa to Myanmar.