there are always two most important things in the Bitcoin network. The first is decentralization, and the second is security. This is the basis of Bitcoin's value and the basis of Bitcoin's consensus. If these two points are lost, Bitcoin will no longer be valuable. At present, the Bitcoin technology itself has proven its value, and there is currently no force that can tamper with the data of Bitcoin and crack the private key of Bitcoin. On the other hand, Bitcoin is also becoming more and more decentralized, because Bitcoin is currently being dispersed in the hands of more people.
I would believe that just like how we moved to segwit chain, we could give a consensus that way as well. It is not always miners that get to decide on things, in fact miners were the ones that didn't want to move to segwit and they created their own BCH coin as well just to show you what the real bitcoin should be like, but all of us decided that segwit is a lot better because it is at least that much cheaper and then some.
This is why I believe that if we want to "use" a chain, we use it and then it becomes the real chain that bitcoin is used, right now 90%+ of people all around the world use the segwit chain of bitcoin and that is why it is the consensus and that is how it was decided.