You raise a very important point. China doesn’t care if they are exporting dangerous products to us. Perhaps they even prefer it that way.
A number of years ago a Chinese company was caught putting low-formaldehyde labels on flooring that was loaded with formaldehyde. I wonder how many American homes are slowly being contaminated by that flooring.
https://www.cnn.com/2019/03/12/business/lumber-liquidators/index.html
Lets not forget the toxic gypsum board that was used to rebuild homes damaged by hurricanes in the south.