Also, I dont know in which world he lives (I suppose most of his friend were Asian-Canadians) but your average westerner cannot name even 1 single cultural production of Taiwan. In the case of South Korea, most of the stuff they are known for (mainly KPop, and great movies/tv shows) has been produced in the last 20-25 years when the country reached an economic level and show business know-how that allowed them to flourish. China is not there yet.
China produces lots of good stuff, that for many reasons (distribution, advertisement, political hostility) are not known in the west.
Just one example, this is a fantastic TV show. I even say it is the best show I've watched in 2021, and you can watch it, legally and for free:
https://www.iq.com/album/the-bad-kids-2020-19rrhl1l3l?lang=e...
The quality is there, it needs to be more wisely advertised. Lots of mediocre productions too of course, but that is just Sturgeon's law in action.