While he’s right about the timeframe, he’s wrong about the country of origin.
The best hypothesis of the Polynesian expansion is that they left from Taiwan sometime after 3000BC. They are decendants of the Taiwanese aboriginal peoples, not Han Chinese settlers. So even if you ignore current geopolitics, saying “China” is grossly misleading.
While he’s right about the timeframe, he’s wrong about the country of origin.
The best hypothesis of the Polynesian expansion is that they left from Taiwan sometime after 3000BC. They are decendants of the Taiwanese aboriginal peoples, not Han Chinese settlers. So even if you ignore current geopolitics, saying “China” is grossly misleading.