Good post. The conventional corn uses chemicals, too, just different ones.
The biggest problem with conventional crops is that they have to be kept separate from GMOs. If you ever see a big elevator operating, there are trucks coming and going and gigantic bins where it all gets intermingled. Emptying the system for a day of conventional-only would be an ungodly task. And the separation would have to be all the way to the shipping containers or trains. Nightmare in the makimg.
That is the fault of the mills and the farmers themselves. Another fact - Mexico isn’t the only nation that rejects GMO corn (and other products). There is still quite a bit of non-GMO corn farming being done.
What ever happened to producing what customers want vs trying to get the government to force customers to take what you demand they have?