This is because upper management has an imbalance of power, agreed. But it seems to me that unionisation ultimately gives management additional power - when th

This is because upper management has an imbalance of power, agreed. But it seems to me that unionisation ultimately gives management additional power - when the management can re-direct employees to the bureaucracy of the union structure - where the union has negotiated protection for their own upper management - rather than manage with them as individuals with individual circumstances.