Should US regret that its racist mentality forced Qian Xuesen back to China?

Video: Should US regret that its racist mentality forced Qian Xuesen back to China? Now it wants to force the top Chinese scientists in the US to leave, successfully forced more than 20,000 Chinese scientists back to China. Do you know how many Qian Xuesen are there? 美國把錢學森迫走，是否應該很後悔呢? 美國種族主意就是改不了. 現在又要把美國頂尖華人科學家迫走，已經成功地把二萬多位華人科學家迫回中國，裡面不知道有多少個錢學森?