In fairness China did crack down on that[0]. Some limits are excessive, but here the minor hit was worth it.
[0]
https://www.nature.com/articles/s41586-021-03277-w
https://www.dw.com/en/ozone-layer-recovery-back-on-track-aft...
[0]
https://www.nature.com/articles/s41586-021-03277-w
https://www.dw.com/en/ozone-layer-recovery-back-on-track-aft...
I'm a stratospheric scientist. Back when the reports were written, that CFC's were still being emitted in China, our community was pretty bummed and weren't very hopeful, but we were very happily surprised when China got those emmissions under control so quickly.