Why won't upper ball joint removal socket work?

Lotta Chinese stuff is bad (like brake line fittings that are the wrong thread, lower control arm bushings that don't quite fit, etc.), but I don't blame the Chinese, who can make good stuff (viz, engine parts for OEMs). I blame the Americans responsible for having replacement parts/tools made in China at the cheapest price possible and failing to make sure the parts meet the standards of the original made in USA stuff.