DNA is not a virus. When you ingest food, your body simply extracts proteins and nutrients and after a few minutes sitting in stomach acid, any of the (dead) plant or animal cells containing (dead) DNA are no longer cells or DNA anyway.
I searched and found no reputable scientific study showing GMO food to be a problem. I did find lots of scary stories about what “might” happen, along with photos of deformed dead mice and so forth. The lack of science is probably why the pro-522 folks have avoided making any such claims, relying instead on scary pseudo-science blogs and word of mouth to frighten the masses. No, they simply want you to make an “informed” decision, right?
Follow the money. Behind every potential law, there’s someone potentially making money because of it. If, as the pro-522 people say, there’s no added cost to “informing” you, they could save everyone a whole bunch of trouble by instead of the government mandating labeling of GMO foods, label their own product as non-GMO. Problem solved.
But then, that’s not what this is about. By having the government mandate labeling, it’s implied to the uneducated that GMO foods are problematic – an instant case of crony capitalism favoring non-GMO suppliers.
One more thing. If you’re a human being and have eaten anything in the past few thousand years, you’ve ingested genetically modified food. They can just do it faster these days.