and agree together that the "landing" was to be made on the river
For heaven's sake the the cockpit is not a democracy nor is it a committee decision. In such a time critical situation the captain is empowered by law to be in sole command. "Agreeing together" before the captain ditches the aircraft is not CRM or TEM and the time is well overdue for some first officers to realise that their task is to give support where the captain requires it - not to demand a committe approach to every action or decision the captain may choose to make.