中国文物 are damaged by Chinese people much more than those in other countries, 10, 20, 50 times more. Not all 中国文物 oversea are illegal and most of they were bought by foreigners and brought to other countries legally, just like so many foreign cars made in other countries in Chinese streets. Western countries took some 中国文物 but such 中国文物 were protected and show the world people those 中国文物, while 中国文物 destroyed by Chinese people and Nobody even knows they ever existed. Chinese generally didn't pay much attention to 中国文物 until recent few centuries learned from Western.