Workers striking against automation is a losing proposition long term. The smart ones will learn how to make/repair/operate the new cranes and will be fine. Crane operators will go the way of navigators post gps and train firemen post diesel/electric and weavers post the loom. Understandable fear and anger but ultimately pointless over the long arc of time. If anything strikes will accelerate the change, computers don’t strike or argue. Savings in bitcoin helps insulate you from these types of inevitable changes and provides a buffer that allows you to learn a new skill.