ok suppose what you are saying is true and no one supports BCU, suppose by some miracle in few months majority of miners like whatever percentage value they have decided supports BCU then in that case bitcoin core developers must support BCU and BCU must be BTC or will there be a different excuse then.
Then BCU and BCC goes live everywhere and let the market decided, but don't forget Metcalfe's law, the two chains together will be worth less than one chain, a split will be bad for everyone.
Agreed that one chain is better option, so I am asking that why not everyone is ready to move to single chain once there is consensus, why not wait till segwit or BU system has consensus as they have set percentage required for each and then take that chain as bitcoin chain and move forward, why do people want to first fork and then see what will happen. Are people so stubborn that they cannot accept that their opinion was not the majority opinion for one time.