And statistically, their idiocy means they probably eat meat.

https://pmc.ncbi.nlm.nih.gov/articles/PMC1790759/

Higher IQ at age 10 years was associated with an increased likelihood of being vegetarian at age 30

IQ remained a statistically significant predictor of being vegetarian as an adult after adjustment for social class (both in childhood and currently), academic or vocational qualifications, and sex