They aren't genetically the same on a population level. In the lake they have to pass through natural selection, and those fish that survive get their "pick" of mates from a wider population. In the tank there is no selection and the choice of mates is limited, therefore fish that wouldn't survive or be successful in the wild grow to adult size.
WC is a concern for those people who provide you with the F1 fish. Better to have WC breeders and produce F1 fish so that you can buy these with the tag of F1. There is a general consensus that F2 is the last "useful" label that applies to the fish trade. Generally speaking F1 fish will look the similar to WC fish (we can't fully replicate the natural environment) and will still produce viable offspring.
There's nothing wrong with F1 fish, but they are by no means "the same" as wild caught fish.
WC is a concern for those people who provide you with the F1 fish. Better to have WC breeders and produce F1 fish so that you can buy these with the tag of F1. There is a general consensus that F2 is the last "useful" label that applies to the fish trade. Generally speaking F1 fish will look the similar to WC fish (we can't fully replicate the natural environment) and will still produce viable offspring.
There's nothing wrong with F1 fish, but they are by no means "the same" as wild caught fish.