I presume that isn't what he really said. Unless for some really peculiar reason he wants to claim China came into existence as a nation after WWII.
In actual fact, of course, Chinese history goes back somewhere close to 3000 years, making it by far the oldest country on Earth.
I presume he’s only counting as the country the current regime, which dates either back to Deng Xiaoping after Mao’s death in 1976 or the Communist victory in 1949. Let’s hope it’s the former, since 60 or so years and 65 million corpses is enough of a learning curve.