The fact that a unionization vote was happening would have been more than enough to start an investigation into management and firing management before the vote

The fact that a unionization vote was happening would have been more than enough to start an investigation into management and firing management before the vote due to bad practices could have prevented the unionization vote from being passed. I'm not sure it matters much how much leeway the managers actually had in preventing unionization from happening. Amazon has been extremely cold hearted and calculating with the management of their logistics infrastructure. They are managing (ruling) by fear, not love. They could easily have prevented unionization by treating their employees like human beings and not robots, but they chose to go the dystopian route of extreme monitoring and pushing their employees to work as hard as possible. It almost feels like a move that Putin and other dictators would pull. They shift blame to those that are relatively powerless in middle management and make an example of them even though the fault lies with those at the top.