>I’m genuinely surprised there are still Chinese professors not leaving or preparing to leave US.

I'm genuinely surprised by the level of American delusion about what happening in the others parts of the world.

In China, their risks are much higher. Outside of the China, they would face a several times drop in their standard of living, which isn't worth tiny risk of something bad happened because of China Initiative. Especially in the case when this "something bad" most probably would be them losing their job and deported, something that your solution suggesting them to start from.