There is nothing wrong with Chinese pens in general. If you want something that is high quality (higher than many entry level 'Western' pens), but different in design and colours, then look at the PenBBS range.
As for the old myth of 'copying' designs, then MontBlanc copied the designs of Sheaffer pens and Parker copied elements of early model Waterman pens.
There are several types of IP (Intellectual Property) protection. The three of interest here are Design, Patent and Copyright.
Design refers to the shape of something (like the iconic Lamy Safari). It only lasts 20 years, and cannot be renewed. Consequently a week or so after the Lamy Safari design expired there were a whole heap of cheap imitations that were perfectly legal.
Patent refers to a novel invention, such as a new way of filling a pen, such as a lever fill, crescent fill, converter, piston, vacuum, etc. Patents can be licensed to other entities and can be used by them, but patents also expire, and can then be used by anybody without restriction or cost. Such is the patent for the Pilot Vacuum Filler mechanism and the Mont Blanc screw-in converter.
Copyright refers to a design feature such as a snowflake or arrowhead clip. These stay valid while you pay the fee. Mont Blanc continually keeps the snowflake copyright active, but Parker have given up on the arrowhead clip. You can't use the snowflake without getting into trouble but you can make an arrowhead clip.
There are only so many ways to make a pen, with only a limited number of shapes. Of the several dozen pens I have, only a handful (Parker 5, 51, 75 and 100, Lamy Safari and 2000, PenBBS 323) have elements of originality. Only the Lamy Safari and PenBBS 323 are truly unique, not borrowing elements from previous designs.
I have never had to throw out a Chinese pen because of low quality, but I have disposed of a Skynn 'ergonomic' fountain pen that simply had no intention of ever writing.
I have also thrown out a Parker that was made in India but was also so dreadful I couldn't use it. However, one of my best pens is a hand-made pen from India.
Some of the older, vintage, Chinese pens are a bit dodgy as far as quality, but I have not had any problems with any of the current Jinhao, Kaigelu, Crocodile or Wing Sung pens that I have.
The current Jinhao 82, X350, X850, X159, 9019, Wing Sung 699 (Vacuum Filler and Piston Filler) and Wing Sung 630 (large piston filler) are all excellent pens and well worth your money. I have also heard good things about the Mahjong P136 but I haven't got one yet.