If all technologies are improving,then it is necessary and possible to increase the block. There is no reason to freeze the block size.
So you're saying the civil war that divided the community happened totally without cause? There must have been a reason, because I definitely remember being on the "pro-increase" side at the time.
The only reason I see is the reluctance of most Bitcoin developers (not all) increase the block. I do not know the real reasons for this decision. Because all the arguments that the developers gave in favor of such a decision were unconvincing. For me. The majority of society believed them. (I'm not going to rewrite history

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The problem is that the Bitcoin community is mostly zombified. They are sincerely convinced that the block cannot be increased. They have no real reason, but they are convinced of it.

Therefore, they will generate refutations for any proposal to increase the block. They generate such arguments against increasing at a high rate. All of them without proof, just look plausible.
If you take the time to prove one claim untenable, another will immediately appear. And the number of such pseudo-true statements is not limited.
I'm sensing you feel somewhat resentful that your arguments weren't received as particularly compelling at the time. If you want to re-write history from your own perspective, feel free. I'm not looking to re-tread old ground. But I remember reading enough well-substantiated viewpoints on the matter to change my stance. Also, you can't argue about the outcome. Consensus has spoken pretty conclusively.
Just because society chose such a consensus does not mean that it was the right decision.

I'll concede that politisation may have been a factor, though. There were certainly comments made at the time, some by myself, that the debate was getting rather tribalistic. You'll struggle to convince me the arguments made against large increases in blocksize were spurious, though.
If the arguments against increasing the block were convincing, then they should remain the same now. All you have to do is get them out, dust them off, and give them to the public. The fact is that they were ridiculous, and so they remained.