- Vegan dishes enjoy nowhere near the popularity of low-fat foods in the anti-fat wave of the 80s and 90s. Not even close. It's still a minority of restaurants that offer any vegan options.
- The main argument for plant-based diets isn't that they're healthier (though a minority of folks do argue such), but that they're less cruel to animals and are more environmentally friendly. In contrast to arguing that low-fat diets are healthier, both of those assertions are uncontroversial.
Personally, I still eat meat, but have moved (aside from eating out, which I do rarely) to buying all of my animal products from farms that are certified for specific animal welfare conditions. And, well, I also always have some lard in the fridge. Where I'm from, people tended to save rendered pork fat in their fridges.