I think what you are describing is actual racism what the author is describing to me sounds like someone being unhappy with the culture the live in being differ

I think what you are describing is actual racism what the author is describing to me sounds like someone being unhappy with the culture the live in being different and being badly educated about the culture their ancestors came from. Food is core to every culture. We all need to figure out what is edible and what isn't. Raw foods and fermented foods are right in the riskier category of what's edible and therefore frequently considered problematic by other cultures. That's a good thing. It means we have different cultures and diversity on our planet.