I'm trying to be as specific as possible.

Bitcoin’s block reward converges to zero. Miners need incentives to existing. The TX fee, which will replace the block reward, exists only when the big block is processed.

The cost of disk storage continues to drop. Miners do not necessarily need to store all data. Please refer to Chapter 7 of the White Paper. I expect that the service to store all data will be provided by another specialized company.

Miners eliminate double-spending attacks according to their own interests. For this reason, I referred to as a police officer.

What do you think are the benefits that a small number of miners can achieve by forming a cartel? Isn't it just an effort not to put a specific TX in a block? Or they reject blocks of honest miners.

Competition from a handful of specialized honest miners prevents double-spending attacks. They handle larger TX with lower fees. This is a completely different form of storage from centralized data storage. Because you don't have to depend on anyone.

All of this was what Satoshi expected. He designed Bitcoin like this.

Thought Bitcoin as a Protocol set in stone for its lifetime
“The nature of Bitcoin is such that once version 0.1 was released, the core design was set in stone for the rest of its lifetime.” (June 17, 2010)
Source: https://bitcointalk.org/index.php?topic=195.msg1611#msg1611

Predicted the emergence of server farms with specialized hardware
“The current system where every user is a network node is not the intended configuration for large scale. That would be like every Usenet user runs their own NNTP server. The design supports letting users just be users. The more burden it is to run a node, the fewer nodes there will be. Those few nodes will be big server farms. The rest will be client nodes that only do transactions and don't generate.” (July 29, 2010)
Source: https://bitcointalk.org/index.php?topic=532.msg6306#msg6306

1MB block size limit should be temporary because it would never scale
“Satoshi didn't have a 1MB limit in it. The limit was originally Hal Finney's idea. Both Satoshi and I objected that it wouldn't scale at 1MB. Hal was concerned about a potential DoS attack though, and after discussion, Satoshi agreed. The 1MB limit was there by the time Bitcoin launched. But all 3 of us agreed that 1MB had to be temporary because it would never scale.” (Feb. 7, 2015)
Source: https://bitcointalk.org/index.php?topic=946236.msg10388435#m...

Thought massive on-chain scaling would be possible at low cost, and now it is
“Visa processed 37 billion transactions in FY2008, or an average of 100 million transactions per day. That many transactions would take 100GB of bandwidth, or the size of 12 DVD or 2 HD quality movies, or about $18 worth of bandwidth at current prices. If the network were to get that big, it would take several years, and by then, sending 2 HD movies over the Internet would probably not seem like a big deal.” (Nov. 3, 2008)
Source: https://satoshi.nakamotoinstitute.org/emails/cryptography/2/

Transactions will be processed within 10 seconds on snack machine
“I believe it'll be possible for a payment processing company to provide as a service the rapid distribution of transactions with good-enough checking in something like 10 seconds or less.” (July 17, 2010)
Source: https://bitcointalk.org/index.php?topic=423