Earlier quoted context omitted.
I still think it's wrong to dismiss people's experiences out of hand and lump it all onto the racism pile. So it's likely not the MSG, but maybe the chinese restaurants these people go to have a reputation for not being the freshest? This can raise histamine levels in the food and cause the same symptoms as an allergic reaction (which it basically is). Whatever it is, there is no reason to assume the food intolerance…
On the one hand, you think it's wrong to suggest there's racism involved in MSG's reputation tying back to "Chinese Restaurant Syndrome", and on the other hand, you offer an axiomatic derivation of Chinese restaurants being unhealthy ("histamines") because of their "reputation for not being the freshest".
But it's a weak argument...
I wonder how much is from blood sugar spikes from white rice and everyone's favorite Americanized sugar glazed Chinese dishes combined with the MSG nocebo effect.