I can go on and on about the poor quality of tons of Chinese-made products but you get the idea. Having said that, there’s plenty of great Chinese brands that make quality stuff. It’s just that there’s so much more cheap/generic stuff from China that competes with the good stuff it gets drowned out.
What you are experiencing is a different cultural approach that the west frequently fails to get what they expect. There's a concept of "if you ask for bottom dollar prices, you're going to bottom tier products". Paraphrasing even further put another way "why are you complaining about getting junk when you're only willing to pay junk prices?". Get acquainted with the Chinese phrase "chàbuduō" (差不多). It literally translates to "a little bit less than all", but figuratively translates to "close enough". This is a very common phrase and idea in Chinese culture. If you're buying the cheapest version of something you're going to get a product that is likely not up to spec, but "close enough". The second phrase you should know is "méi bàn fǎ" (没办法). This one figuatively translates to: "nothing can be done" or "it can't be helped". When you point out something isn't up to what you expect, you should be ready to hear this phrase and understand that the person or company you're dealing with isn't interested in changing the situation and are simply washing their hands of the issue leaving you with it.
Neither of these are failings of Chinese culture, its just different. The failing would be expecting all other cultures to behave like our own.
If you don't want the bad product, buy the more expensive version. As you said, you can absolutely get very high quality products from China, but you're not getting those for a tiny fraction of the price of high quality goods from other sources.