Plenty of tire factories have opened in the US recently. Nokian and Hankook in TN, Kumho in GA, Giti in SC. And there are others I can't think of right now. Some of those weird off-brands are even made in the US, too.
Goodyear has had some problems, and a lot of people on here complain about their tires too.
In fact, Goodyear used to own the closed Sumitomo factory. The two companies supplied tires to each other as well. That relationship ended a few years ago, with Goodyear handing the factory to Sumitomo.