Yeah because that’s how soy beans work dude. I think there must be some miscommunication here - the majority of the harvested soy bean is physically not palatable to humans.
Perhaps you are misunderstanding what “70 percent of the soybeans” means. 70 percent of the harvested soy material is not salable to humans. It’s called “soy meal”, look it up. It’s not like if you count all the beans that get picked, 70% of them go to cows. Each harvest is mechanically separated into its component parts and shipped to different consumers, and only a minority of the mass is suitable for oil production or direct consumption.