Actually there is evidence that these researches hid their ties to China/foreign governments, that's kinda what the article is about. Requiring disclosure of foreign ties is hardly a new or controversial procedure in democracies or dictatorships.

Calling it "racist" is baseless, nonintellectual deflection, as is "well dictatorships do it, so we shouldn't!". Dictatorships also collect taxes and fund their military, should we stop doing those things too?

If you're not part of the 50 cent army you certainly are taking pains to sound like it, because your arguments have ~50 cents of effort behind them.

The policy is simple and common sense: If you receive funding from a foreign government, disclose it.

The fact that China is a dictatorship does not invalidate this policy. You seem to want it both ways: China is an innocent player that is being unfairly profiled when it suits you, and China is an evil dictatorship with bad policies when it doesn't.