Can China clone a controller with hall effect sticks and decent build quality because the build quality of controllers PS4/XB1/Switch and up has been noticeably worse.
They already do. I bought a Flydigi Vader 3 Pro at the end of last year and it has been amazing so far. Still feels like new and I use it a lot. There's also other highly regarded controllers like those from GuliKit and from 8bitdo.
It's absolutely great! I don't mind the noise cause I really like the feeling of the buttons. My gripe with it is that their software only runs on Windows, it sucks to have to boot a VM to be able to configure the buttons, at least it lets me configure 4 different profiles. I also saw they just released the Vader 4 Pro, looks cool but doesn't seem like a big upgrade.