This is a linkpost for https://foundational-research.org/s-risks-talk-eag-boston-2017/
The section presumes that the audience agrees wrt veganism. To an audience who isn't on board with EA veganism, that line comes across as the "arson, murder, and jaywalking" trope.
A lot of people who disagree with veganism agree that factory farming is terrible. Like, more than 50% of the population I'd say.