Literally everything you're talking about applies to selective breeding of crops as much as it does transgenic crops (what people typically mean by GMO). It applies even more so to irradiated seeds, which - strangely - no one seems to mind or want labels on.
Randomly changing millions of base pairs: good. Precisely cutting a gene from one crop and putting it in another: bad. Baffling.
Randomly changing millions of base pairs: good. Precisely cutting a gene from one crop and putting it in another: bad. Baffling.