Eventually every block WILL be 4mb. Full blocks means competition for fees. Higher fees means higher security budget.

About the 1GB every 4 years, I'm not sure that the maths adds up.. I get the point though, as a node runner, it's nice to fit it all on a 1 TB drive, and wait days (not months) to download it all.

From my perspective, trying to decide what should / shouldn't go on chain, by definition, is censorship. The correct way out of this is to price the "cloud storage" wackos out, by focusing on adoption (hence more tx), not in-fighting.