is Miami, New york city, los angeles world class cities?

This is to show you we have plenty of ignorants out there: i was getting some groceries when i hear this chinese girl asking is miami, new york, and los angeles consider as "world class cities"? i couldn't answer the question because she wasn't speaking to me but man i thought that was a very funny question. this is by far the most ridiculous question i have heard in my entire life. and i really want to see what you people think of this question. IS MIAMI, NEW YORK CITY, LOS ANGELES CONSIDER "WORLD CLASS CITIES" NO THEY ARE JUST CONSIDER GARBAGE CITIES. LOL!!!!!!!! >