True. But continuing to subsidizing meat (without those it would never have been affordable) is the least efficient way to go about it. Saving the money (if we include the environmental costs we're easily in the hundreds of billions per year for Europe alone) that goes into subsidies for livestock, could pay for a lot of programs that make plant-based healthy eating more widespread. By education, but also by targeted subsidizing of healthy foods.

Edit: Also: Meat being take off the menu by prices makes it more complicated to obtain amino acids, but it also has a lot of positive side effects. Red meat and especially processed products cause quite a bit of problems. Heck, maybe we should bring back rationing.