Silly, obvious military-industrial-complex-sponsored scaremongering is silly and obvious.
1) China is buying land and food from abroad 2) Some conflicts in the middle east are tied to food shortages 3) Climate change is a threat to food security
So yes, the circumstances are brewing the perfect wet dream for the military-industrial-complex
China importing food is neither surprising nor destabilizing. Only in the Washington echo chamber could investment and trade with developing nations be portrayed as some sort of "threat" without derisive laughter ensuing.