It's all just talk
Why are people so against GMO when broccoli...
https://www.reddit.com/r/NoStupidQuestions/comments/cqdlns/where_the_hell_can_you_find_broccoli_in_the_wild
In Broccoli's case, it is a cultivar of Brassica which comes from the northern mediterranean. If you saw one wild it would probably just look like a big leafy weed with a tiny little broccoli-like thing at the top if you looked really closely.
Broccoli, cauliflower, kale, Brussel Sprouts, it's all the exact same plant bred for different things, just like how apples are bred for taste or juice or whatever, or how there are milk cows and meat cows. Same species, just toyed with.
Another fun fact? Almost every single citrus fruit you know of, is a hybrid between 3 original fruit types. Oranges, lemons, limes, grapefruit, tangerines, the whole 9 yards, they're all non-original.