Modern “Industrial level selective breeding” (which frequently uses a variety of mutagens to maximize the frequency and magnitude of genetic changes to select from) is distinguished from transgenics as a method of inducing genetic change largely by the fact that it's a lot less controlled as to what is going on beyond the targeted trait.

It's kind of odd to scaremonger about organisms whose DNA is a result of transgenic modification but to be okay about those whose DNA is a result of modern industrial selective breeding.