I'm not sure we can close the barn door on this icon66.  Nor can I agree that machines are bad.  Petroleum, for example, is an amazing chemical soup providing a huge array of products and very powerful fuels.  The downsides to oil are obvious but the biggest problem is the petroleum industry and the self-protectionist power it wields so that addressing the environmental problems and finding alternatives to this finite substance becomes almost politically impossible.  Does that make oil bad?
Modern agricultural methods can be reduced to local scales where crops can be raised.  But economies of scale and other factors make it far more effective to use those methods, chosen and applied with care, allowing many more people to eat.  The problems arise when corporate farmers misuse technologies and even manipulate how much of a crop to raise in order to insure maximum profit without regard to people going hungry.
It's about control, who does it and for what purpose.