Safe or not, I do not want to buy or support GMO food because I know there's probably a patent behind the seeds that can screw over farmers (and by proxy everyone else).
It's been the norm ever since the green revolution (modern hybrids often don't breed true http://www.foodrenegade.com/hybrid-seeds-vs-gmos/ ).
They are making an economic decision when they buy and plant any crop, and they are good at making it (it's a low margin business).
Then you want labeling about patents, not "genetic modification".