If we can easily believe that eating lab grown meat and real living natural food is same then why don't we believe fake news as real? They also sound real, they also have words, they also have websites they also appear to have likes...
This effort to make the boundary between nature and artificial disappear isn't it like making ourselves disappear, are we humans not natural beings?
Regarding your thoughts on whether it's a living thing, is purely philosophical. It sounds to me like you haven't actually seen what goes into these artificial meats. They extract cells from animals and feed them the nutrients they need (like amino acids) to cause the cells to divide and grow like they would in the animal's body.
So whether a muscle grew with a cow over years, or it grew in a lab, does that really matter?
Is an organ that's grown on a pig any less an organ than one grown in a human?
Because meat isn't true or untrue, it provides things your bodies need, things it doesn't need, or things that are harmful to it.
I'll be honest, I'm not totally on board, but I don't see any reason we shouldn't grow meat in a lab, and probably many benefits.
Ideally, they'd be sterilized between batches, in a way that left no residue on the product. In practice, though, I wonder if they won't need to use antibiotics (or something like them) in order to ensure a safe product.
The advantage will be that all those antibiotics don't run off into the soil... except for the plant's wastewater. Still, it ought to be more localized than the current practice.