Layer 2 blobs aren't even a solution either, arguably. You have to then engineer the layer 2 bridge to have it's own anonymization and escrow handling technology that is disconnected to the Ethereum network entirely. And realistically speaking, "closer to zero" does not mean free (or even at negligible cost). L2 chains can only exist when transactions on the mainnet are made impossible due to unbalanced gas prices. It's a catch-22.
