You could be right. But animals spend a lot of energy making products other than consumable protein. They require a lot of land and water and fuel even if hous

You could be right. But animals spend a lot of energy making products other than consumable protein. They require a lot of land and water and fuel even if housed in close quarters. And you have to tend them which is labor intensive. And ship them around to be finished and slaughtered. If energy costs rise to a certain point and technology becomes good enough (including automation) I'd expect protein from whole animals to be considerably more expensive than lab grown. The exception maybe being strictly grass fed beef on land that isn't useful for much else. But that won't have the taste people expect and might not actually be as good as the lab grown stuff.