They invested to get the market to 50b at the expensive of other products that could have been grown. The 2b figure just helps keep the edges from fraying.
If something else had been supported to get that generous crop, we'd be dissing it now. Like VHS vs Betamax, Corn won early and it won big. Not surprising it went like that; so many things do.
Anyway it'd cost trillions to retool for some other staple crop now.
Anyway it'd cost trillions to retool for some other staple crop now.