Now you risk splitting the network in half. You need to provide some sort of guarantee that we won't have another altcoin fiasco (BCH/BSV). Who can do that? BTC Core devs? They don't control the network (miners).
That's a wrong comparison. The bcash fiasco was a minority trying to split off. The problem with those two shitcoins is not even with their bigger blocks, it is all about the fact that they did NOT fork by reaching majority consensus.
The question effectively becomes: "What does it take to get everyone on the same page?"
Even under the pressure of Ordinals, we can't find agreement within a tiny sample of network participants. It seems unlikely we'd find network-wide consensus, so cryptozize isn't wrong to point out the inevitable outcome if people try to rush this.