During WWII the US government stole Stihls design and built knock offs for military use ,they abandoned the practice after the war.
I look at what Husqvarna brand did to Poulan ,McCulloch, and other great American saw companies and felt no pain in buying a 372xp knock off ,But hey I don't begrudge others for their higher moral beliefs , its just that everyone has been guilty of patent infringement in some for or another .
If you don't want to support China thats cool I'm not big on them subjugating Tibet and exiling the Dali Lama, kind of a dirty deal.