Most people have built-in “persuasion resistance“, as salesmen call it. They don’t like to be convinced by others, they don’t like to be told what to do. Also concerning the food that’s on our plate, they’ll decide about that themselves. They need no government regulations or animal rights or vegetarian groups preaching to them about what to eat, and what not, how much of it, or how they should prepare it. They’ll make up their own minds about all that, thank you very much.
As changemakers, it is important to keep this in mind. All we can do is give people information, maybe show the flaws in their reasoning sometimes (when we’re talking to reasonable people), and let them work out the rest for themselves.
However, it may also be useful to point out to them that it is an illusion to think that they are entirely in control of their food choices. What most people eat is very heavily determined by agriculture and economy, culture and tradition, what our parents ate, and what commercial interests want us to eat.
As an illustration of this, check out the graphic from the counting animals website. The chart represents the US advertising budgets of different food cooperations, compared to those of animal interest groups. It would be interesting to compare this also with government budgets for healthy or sustainable eating.