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.
Sorry, but a lot of this has had so little testing that saying things like “are harmless to birds, fish, and mammals” is anywhere from wishful thinking to a lie. How was that conclusion reached? Often, the ones making that claim are the same groups responsible for making the new GMO strain, who have everything to lose if they say anything but “it’s 100% safe”.