You're not wrong, but I have no faith it will come to pass. Most humans want to eat meat, and will likely continue to do so until forced to stop. Continuing to spread the message is still helpful however, change comes in all forms.

What I'd like to see, is more agricultural reform, both on water management, and export taxes. We have a lot of agricultural production based on legacy design that doesn't account for current water supply issues, and much of the end product is shipped and sold overseas for profit.

Depleting a critical local resource to profit a few is the type of issue that feels like it has a chance to gain public support for legislative change, once the situation is dire enough. I think we're still the frog boiling stage, but at some point it'll be too hot for the masses to ignore.