Why they're bad
Not Natures Way
Many people think that mixing genes defying natural selection is immoral. Genetic diversity in many crops, is being decreased. GMO'S are going against natures way and throwing off the balance of the ecosystem.
Not "Real" Farming
With growth hormones, large farming industries are mass producing livestock in terrible conditions, putting small farmers out of business. Many buyers don't even know they're buying food from these "fake" farming corporations. Luckily there are still people buying small farm organic foods, but if this continues, small farmers will be completely taken over.
GM foods have not been shown to be safe to eat and may have unpredictable consequences. When trans-fats were first introduced, corporations battled to get them into the market. 10 years later, researches found out the were very unhealthy. Many scientists are worried that the genetically altered foods, once consumed, may pass on their mutant genes to bacterium in the digestive system, just like the canola plants in North Dakota. How these new strains of bacteria may affect our body systems’ balance could be dangerous.