I'm sorry China has solved many problems the West is still working on. They've had public funded healthcare/education from the medieval era and they haven't been involved in any major wars and yet still dictate policy in the region.
Even ignoring the phrasing that could be read as claiming no major wars since the medieval era, we don't have to go so far back. I mean, sure, the Cultural Revolution killed more Chinese people than WW2 and the Korean war did combined, but that's still eleven million or so Chinese people dead in those conflicts.
> they haven't been involved in any major wars and yet still dictate policy in the region.
As far as I know, the last major war China fought in was when they invaded Vietnam in 1979 after Vietnam had invaded Cambodia (Chinese ally) to get rid of the Khmer Rouge (the same regime that killed everyone who wore glasses because they may have been reading too much)...