I've heard of Jennie-O and Butterball. Been around for decades. I would call that list highly suspect.
Note the non GMO birds carry a hefty price tag. As does the Kosher.
If I'm paying that much for a bird, it better be pretty special. Personally, I don't get the whole GMO train of thought.
It's like the kayakers here that protest oil drilling platforms from their petroleum based paddle boats.
"Free range, non-GMO, kale..." Fads come and go. What was it that PT Barnum once said?