You mean convince people to stop eating meat? It's already happening. At least in germany the number of vegan meat alternatives has exploded. These used to be

You mean convince people to stop eating meat? It's already happening. At least in germany the number of vegan meat alternatives has exploded. These used to be niche products, you could only get in specialty stores. Now there's whole supermarked isles dedicated to them. The solution is pretty simple. Stop subsidizing meat and diary farmers. Stop their lobbying, which results in ridiculous laws like the ones in the EU, where you're not allowed to call Almond-milk Almond-milk, because the diary lobbied for "milk" to be a protected term. Put that money into vegan alternatives, and people will buy them automatically.