If they can only do it for specific purposes and their actions are reviewed then it’s possible they could gain union memberships. For example foremen hire, tra

If they can only do it for specific purposes and their actions are reviewed then it’s possible they could gain union memberships. For example foremen hire, train, supervise and evaluate workers. Yet they have a union. I can’t say for certain if it’s a protected union but it is a large and existent one in the US.