It's funny because one of my friends who majors in genetics is very adamant in his defense of GMO's. One of his better points involves the idea that GMO's help feed a lot more people. This isn't an exact word for word recollection, but it sort of goes like this: "We can go organic, but then a good portion of the population dies of starvation. Organic farming is unsustainable, and cannot even begin to approach what is required to feed an ever-growing human population"
I actively avoid large-scale organic for this reason. It creates a market for an irresponsible good. However, there are different organic goods available. The farmer's market stand selling organic berries and watermelon that they just grew to sell because they don't have access to world sustaining levels of wheat production are different. At that point it's likely as not organic in truth and if you want some fruit then go for it. But at the grocery store, it's bullshit.