These criticisms don't even make sense. YC is announcing that they're not expanding formally into China, which is something China very much would want them to do.
There is no question China presents an opportunity to generate capital returns on a scale that YC can no longer achieve in the more mature US venture capital market. They also present many risks that are hard to put in an equation.
Whoever the next Chinese government is, they probably won’t look kindly upon those who collaborated with the CCP.