I thought your problem was with "strange" and "unnatural" foodstuffs. Now you say the problem is greedy corporations.

in the other you are creating something that does not (and cannot) exist in nature.

Artificial meat, if a replica of the animal tissue, does indeed already exist in nature, you would just be "simply facilitating nature in doing what it would do anyways," ie. grow muscle tissue. But now the semantic discussion of what is "natural" and "unnatural" is irrelevant as you admit that theoretically there's no reason to think that "natural" foodstuffs are better or worse. Your problem is with corporations and governments.