In the US and Mexico the reason people choose non GMO is because they GMO the crops to be Round-up (Glyphosate) immune then dump extra chemicals on the crops to kill weeds instead of using other methods. Glyphosate has a lot of known really bad effects. I think they should just say that though instead of scare mongering against any sort of known GM. That said GM is rarely used for good things, 95% of GMO grops are round up ready and not good things like new species with natural higher yields or golden rice.