Which is still ridiculous because the Chinese are the hardest working people I've ever seen. I would assume she and her friends are by far the least hard working demographic in China. It's a just world fallacy if anything.
By hard working Chinese people, are you talking about immigrant Chinese workers or Chinese people in China? You could easily make the argument that migrant workers are historically a hard working demographic, but I don't think the same could be argued for the world's most populous country.
It's a selection bias, because the lazy and stupid ones don't qualify for economic immigration, and there is no easy way to illegally cross the pacific ocean.