Unfortunately, it is the inclination of commercial entities to make things faster, bigger, more disease resistant, and hence cheaper, even if in reality it is not better overall.
Why? When a large grain contains the same nutritional value as a small grain ... people must eat twice as much to get the same nutrition.
People can't eat twice the amount, hence get 1/2 the nutritional value .. and become malnourished.
Ever wonder why those huge strawberries in the supermarkets take like crap? When those tiny strawberries growing in your grandma's garden are so good?
The problem is also that because GM crops grow faster, better ... it outbreeds older traditional varieties, and if the proper precautions are not taken, it can quickly escape the original fields & start growing in non-GM fields.
Men have been playing with plant genetics for hundreds of years, only breeding the largest/sweetest/best to get the best results, but only recently have we started injecting DNA from different species, cross-polinating with incompatibe plants.
Scientists think they are playing god, but in reality, the sponsoring corporations are doing a great injustice to the world they are supposed to serve.
It would be a terrible thing to be left with none of the originals, and the human race developed an allergy to peanuts