Without a blocksize you pretty much leave the nodes to the mercy of miners.
can you elaborate on that?
i guess you mean bandwith/storage costs for users?
satoshis vision was that most users will use spv clients. anybody who wants more security can get a root-server / bigger vps and host a node+spv-server and use a spv-client at home.
or did i misunderstood you?
I don't care about Satoshi's vision to be quite honest. I am very, very tired to hear these arguments to authority.
This is not about every user needing to run a node but making sure that they can if they wish to.
By removing the block size or increasing it too rapidly we risk losing increasing the barriers to entry so much that only datacenters of huge corporations will care about running nodes. Again, if that was Satoshi's vision, I disagree because it has clear costs for decentralization.