Critics of GM promote pseudo-science, make false claims based on ignorance and are driven by politically motivated ideology.
The actions of these affluent elitists effectively deny food to the hungry. They are therefore committing crimes against humanity. If you follow the GM issue, no doubt you've heard this kind of simplistic, tired and predictable diatribe before.
A good deal of the debate surrounding GMOs involves attacking critics of the technology who voice genuine concerns and put forward valid arguments to back up their case.