I think herd mentality is a good thing overall. Because if every sheep had to figure out the velocity of the wolf and their personal risk, that would take forever.
I'm thinking of people in rural Japan and China, where McDonald's hasn't yet arrived. These are the thinnest, healthiest, longest-lived people with the least risk of cardiovascular disease and diabetes.
While it's certainly true that many people think that dairy doesn't have a cost to the animal, it's because they never went to a dairy farm.
If some people think, "Why am I eating a dead bird soaked in poop?" I think if some people get disgusted by that, it's all to the good. Their coronary arteries will be healthier.
I think we have to do everything that's useful. We're doctors. Our job is to tell the truth. And it doesn't have to be embellished in any way.