I believe in Satoshi's vision. Hate me for it if you want, I don't care
You have been explain already how satoshi's vision is incompatible with the concept of cash, because setting a blocksize big enough to allow for main stream transactions on-chain, would mean the people validating the transactions have the power to censor transactions at will because it would be no longer people running nodes but corporations.
Satoshi was wrong when he wanted datacenters running nodes while calling his project p2p cash.
My opinion is that there's no way around it. Whether these data centers are miners, LN banking hubs, or other forms of delegated power concentrations, the very idea that a trustless cash system must allow in principle, each participant to verify independently the:
1) validity of a right to spend
2) the non-existence of a spending transaction <--- the hard part
3) the non-existence of "counterfeiting" <---- the other hard part
means that a fungible cash system
has a burden per user that grows with the size of the system. This scaling burden per user will give rise to economies of scale by concentrating the "validation" process in "delegated trust authorities", and users preferring to trust some authority instead of suffering the burden himself. This delegated trust will give power to the owners of those trust authorities, and that's the end of the decentralized, trustless system.
However, this can go almost unnoticed, because these authorities derive their power also from the credibility of the overall system, so in fact, these centralized stake holders have all interest in giving the impression to the user that everything is running as expected. These centralized entities will be, in fact, the greatest stake holders in the system and will do everything to keep the system running for the users, defend the system and propagate the illusion of a decentralized system.