I've never read it or seen this happen. For example, the FDX Non-union contractors. There's court cases all over the US with Attorney Generals saying they are employees. and FDX has lost every time. And I haven't heard a peep from FDX ALPA supporting these guys. I dont think FDX has won one case when it comes to this.
All my buddies say they would rather everyone on property stay non-union. More money for us. The only problem is, your leader is a guy named Webb who golfs with Fred.