I’m really not sure this is the case. For example, we know that we have far more than enough capacity to produce food for the entire world, we just simply don’t do it.
Of course, Americans are very wasteful, and we can’t scale that amount of wastefulness to the entire planet.
We have enough fossil-fuel-dependent capacity to strip-mine soil to feed the entire world. I'm not sure if we have enough capacity for sustainable food production, and even if, the methods, technologies and supply chains aren't there (and won't be, as long as they have to compete against modern agriculture).
Of course, Americans are very wasteful, and we can’t scale that amount of wastefulness to the entire planet.