tropical36 - There are many many tire makers in the US. I do not think that will change. I have no issue with tires made in the USA with non-USA ownership. Like BF Goodrich, Firestone, Michelin, and so on. I do think for something as important to your safety as tires it is better to stick with factories that are here. Korea has not really hot places either. If Korean tire makers build them here I have no problems with them. People like Goodyear and Michelin test their tires in desert heat.
I have bought several Hondas. My only regret is that I foolishly sold my 2004 S2000 a couple years back. A wonderful sports car.