| Capitalism is stronger than customs. If growing them feeds people efficiently, we'll see it here soon enough. Potatoes didn't exist outside the Americas until after 1492. Then many cultures viewed them as lowly and not worth eating. But you can feed more people per area than any other food and they grow in more types of land than many other edible plants. Cultures would reject them until a famine struck. Then the ruler would eat them out of necessity. Then everyone would eat them. Now potatoes are in more cuisines of the world than any other food. If cockroaches are efficient, I would expect a few shocks in some commodity markets to put them on a few cultures' dinner plates, then to spread. Like roaches, if you'll pardon the pun. |
It is incredibly rare for the "rulers" to have their personal food supply impacted by a famine.
Amartya Sen won the Nobel Prize in Economic Science for (I'm vastly over-simplifying) research that indicates only dictatorships have famines because the rulers are insulated from the effects and so have little motivation to fix the systemic problems that cause famines. The "let them eat cake" syndrome (although that quote itself is historically misleading).
The premise is that in a democracy the rulers still eat well, but there are other mechanisms for them to share in the suffering of famine so it never gets to that point.
http://www.wright.edu/~tdung/sen.htm