You are the one making an oversimplification. The type of food you get from animal agriculture is nowhere near the same thing as what you get from large scale

You are the one making an oversimplification. The type of food you get from animal agriculture is nowhere near the same thing as what you get from large scale plant agriculture. On top of that, what you harvest from plant agriculture needs enormous amounts of processing and requires a whole lot of modern machinery and a very complex supply chain. And at the end of it the nutritional profile of your output is not at all the same, you can get closer by adding even more processing, that requires even more supply chain wizardry, more energy and more secondary input but suddenly you are not really more efficient than the animal farm; how shocking...