I still don't understand why someone would choose to essentially clone some code vs import a library. Suddenly you increase your maintenance burden, lose updates, etc. I've had no problems at all with UI libraries like Mantine. If you follow this logic, why not just clone all your npm repos and build from source. Ultimate control, right? Please help me understand the benefits here, because I tried out shadcn and wasn't into it

It's for projects that are design-first, where you'll have to implement your own component library that matches the design.