The demand for meat (and especially farmed meat) is pretty much artificial. Without massive marketing spending by the food* industry, the demand would be nowher

The demand for meat (and especially farmed meat) is pretty much artificial. Without massive marketing spending by the food* industry, the demand would be nowhere where it is now. If you regulate the marketing spending and marketing methods of the food industry, I believe there will be big dip in the demand for meat. This can be done on the grounds of public health concerns, just like it has been done for the tobacco industry. The problem is that food industry also sponsors politician's campaigns, so any move towards regulation is not going to happen unless there is immense pressure from the public. *This includes both the meat industry and the farming industry producing food for the animals.