So, you've never eaten corn, then?
Without humans genetically modifying it, we'd not have it today.
Fact is, most vegetables have been selectively bred, like dogs and cats, and beef cattle.
Hybridization through cross pollination which has been done for centuries is not the same as gene splicing and/or modification within the seed itself.
IMHO only, the former is a natural process aided by man; the latter is tampering with the tree of life.
There are many who will argue that selective breeding is NOT the same thing as genetic altering.