This is like saying tractors won't steal agricultural hand-ploughing jobs, the people building the tractors will. Technically true. But... stupid.
(Probably not too much thought should be paid to the fact that when that economic system collapsed, we instituted allowances for children).
The US is profoundly inefficient at utilizing land for agriculture. The “miracle of the desert” and emptying a giant, un-renewable aquifer has been carrying us for decades. In my lifetime, we’ll be relying on small garden plots just like the Soviets did for vegetables.