Chinese BS.
Manufactured outside the US, under a US Company name “Within Tolerance/Acceptable Parameters” and sent to our shores. Bottom Line is the people who get paid slave wages by their Government, just don’t care about quality or durability. Most Americans “Want it fast and cheap” and many won’t go through the hassle of returning parts that don’t fit.
I’ve found that Knobs, Levers, and trim pieces are notoriously ill fitting.
My fix for this is to take my old worn parts into the vendor’s counter, and comparing the parts before I buy them.
I’ve never dealt with body panels, but I hear there are a lot of issues with them too.