Like many here, I'm confused with how people could be upset with GMOs but not random mutation. Either could result in the same vegetables.

It turns out - when talking to strongly GMO-opposed persons - it's usually not the genetic modification they're worried about. Instead, it's that a crop has been showered in roundup before we eat it. Saying "anti-GMO" has become a simpler way of saying that you're anti-roundup-sprayed-crops.

Even though I disagree with this redefinition, I've found it to be common among anti-GMO parties. I also consider their real argument much more respectable than actually being opposed to arbitrary genetic mutations.