This needs a multipronged approach. Regulations, where regulations work, consumer advocacy where consumer advocacy works, plant-based meat emulations where emulations work, and so on. Honestly though, I'm quite pessimistic that this problem will be solved in the next 50 years. As China and India have become more affluent, their meat consumption has only increased, just the way it happened in the west. And I know from looking around that even educated people here don't care how their meat was farmed.
that's a very US-centric way of seeing things. Market forces have proven to be a very bad instrument to pursue the collective good (time and time again, really). when the situation gets dire enough draconian regulation on the meat industry is inevitable.
Consumers can choose to buy meat from local sources that are ethically raised and at a scale that doesn't negatively impact the local environment. Yes, that will probably cost more then what's at the grocery store. But do we need to eat meat every day, week, or month?
To put all the responsibility on the meat industry, policy, and the government is in my opinion the wrong approach. I think we should be educating consumers and influencing change through the scale of economics.