That’s not really relevant, because your argument would be applied equally to suggest sub chain-fee Lightning transactions can’t work or aren’t real because you can’t just send them on chain. It’s a layer, the unilateral exit is the cost of *enforcement.* That cost is exactly what allows all normal transactions to *not* require it. It’s like saying that we can’t actually have retail payments unless every single person can securely pay for a wire and there can be no trade unless every single person can take every single transaction to court and be adjudicated immediately.