Can we say for sure that we fully understand anything? Heck, even the drugs we take to treat depression end up in fish and amphibians, and fossil fuel 100 years

Can we say for sure that we fully understand anything? Heck, even the drugs we take to treat depression end up in fish and amphibians, and fossil fuel 100 years later causes our climate to radically change. I think that compared to all the risks humans have ever taken, GMOs are ranked on low-risk side of the spectrum. People have been engineering crops for more than 5,000 years, the only difference is that we can do it now much faster and much more precise. GMOs have the potential to improve health and reduce food cost significantly. We have to distinguish between the technology and the way the corporations are making use of it