> You talk about BTC as a settlement layer. A settlement layer for what? The lightning network? Laughable.
Personal opinion: I think the part you are missing here is that lots of transactions shouldn't be occurring on the base layer. Remember that every transaction that occurs is stored in perpetuity on every node in the Bitcoin network. It should be expensive for a transaction like that to occur, and we should create incentives that limit the creation of these as much as possible.
Why is it "laughable" for the lightning network to use BTC as a settlement layer? I think it's perfectly reasonable to have second and third layer networks that sit on top of Bitcoin acting as transaction networks, while the main BTC chain is used for larger transactions or to settle large batches of transactions from other layers.