I want to see Bitcoin Cash’s blocks full, everyday, for a whole year.
You are more careful with your desires. If the Bitcoin Cache develops to the point that users will make 2.5 million transactions a day, and bitcoin will remain at its 350 thousand, then I do not think that this is a a good outcome for Bitcoin.. 
That's not the only metric people use to measure the overall success of the network, though. If, for example, BCH's nodecount dropped to single digits, I wouldn't care how many millions of transactions it could process per day.
Just that increases should be moderate, not excessive.
I understand your moderate position. I just can't figure out how moderate growth is better than natural growth. After all, your moderate growth implies an artificial restriction of growth. Questions appear. What for? We tell users: some of your transactions are unworthy to get into the blockchain. What do we gain by throwing out some part of the transactions? My answers to these questions are: nothing. Only slowing down the development of Bitcoin.
If you can find a way to distinguish at protocol level between "natural growth" and "malicious growth", then let's hear it. I get the part where encouraging a fee market is something many users are not fond of, but I see the sense behind it. If something is valuable but there is very little cost to use it, people will simply abuse it. That's just the nature of things.
As an analogy, I work in a call centre dealing with insurance. I basically listen to people every day moaning about there being an administration fee to make changes to their car insurance policy. None of them seem to grasp the fact that if there wasn't a fee, more people would call in more frequently to make superfluous changes. Instead of paying the cost of adding a driver to a car insurance policy for the remainder of the policy term, you know some tightwads would be calling every other week to add a driver and then calling back a few days later to remove them again. Then they'd tell their friends to do it because it would save them money and suddenly everyone is doing it. People would take the piss if given the opportunity. So if we didn't hire more staff, more customers would be stuck on hold for longer trying to get through to speak to someone. The service would deteriorate and people would complain when they have something important or urgent to do and they can't even get through to us because the lines are jammed with skinflints.
Sometimes discouraging volume is the wiser course of action.