We need to do a lot of things, not just change food production. We should do all of these things, not just change food production. I'm not sure why people are so laser focused on cattle when we need to make drastic cuts everywhere. This isn't an either-or. This isn't optional. "Preferences" are irrelevant when it's between an uninhabitable earth for large parts of the human population and a habitable one.
I'd love to own a car and I'd love to eat 500g of beef everyday, but that's utterly unsustainable, so I don't.