Wonder when was the last time you checked which items in your house were made in China...
TV, Iphone, bits of your car...
Made in China is meaningless, it's the standards that the items are built to that are important. China is a massive country and you will find manufacturers making products to any standards desired, from junk to the very highest of quality.
Cannondales (an upscale-ish bike brand) used to be "proudly made in the USA"
Complete with bird-poop welding subsequently ground down and smoothed with filler, never quite geometrically correct frames resulting in problems such as premature bearing failure, etc etc. And the price...
Production now in Taiwan. Welding any engineer would be proud of, indeed a shame to paint, even, and everything sorted.
IMHO Diana cut corners in order to survive, HW tend to keep things basic, much rather they made better nicer guns in China than boring cheaply made guns in Germany.
**WANTED**: WEBLEY PATRIOT MUZZLE END; Any Diana/Original mod.50 parts, especially OPEN SIGHTS