I am not a BCH shill. I think large blocks on L1 are a bad idea, but this does not mean large blocks do not have a use case.
The problem with big L1 blocks is it makes the cost to run an L1 node too expensive. If less people can run a full node, then the 21 million could be compromised. The 21 million is all that matters.
With a big block sidechain, pegged 1:1 by Bitcoin’s proof of work, it doesn’t matter if the optional L2 node is a bit more expensive. We can have multiple big block sidechains with atomic swaps; so the 21 million is always secured, and the sidechains are still FAR more decentralized than any shitcoin or custodial lightning.