[pcurve]

I think "absurdly" is a bit too strong, but the problem comes down to 4 things:

1. Only small percentage of people was afflicted with physical symptoms.

2. These symptoms were vague and so variable that they had to refer to as "syndrome", rather than "symptom".

3. Ultimately, MSG allergy proved to be largely false.

4. MSG is found everywhere.

"Jewish Deli Syndrome" could be considered racist depending on the surrounding circumstance.

However, if there is set of ingredients that are unique to Jewish deli meat scientifically proven to cause problems for non-trivial percentage of population, then I would agree with you that it wouldn't (and shouldn't) be racist to call "Jewsih Deli Syndrome".