GMO crops are sometimes demonstrably safer, since they prevent mold.
An excellent example is corn that is crafted by splicing into commercial varieties a gene (or genes) from a harmless bacterium. The bacterial genes express proteins that are toxic to corn-boring insects, but that are harmless to birds, fish, and mammals, including humans. As the modified corn fends off insect pests, it also reduces the levels of the mold.
I have no particular problem with GMO crops but have a big problem with them being so heavily regulated that farmers in nearby fields sometimes get fined if a few seeds from GMO crops blow into their fields.