I have mixed feelings about unions, but I'm OK with this move. Cafeteria workers need unions. The maids who muck out hotel room toilets need unions. Coal miners who work in horrific conditions for little pay need unions. You know who doesn't need unions? Millionaire TV anchors. Millionaire movie studio execs and actors. Anyone who makes six figures, which includes a hell of a lot of union members. In those cases the…
The story about these is interesting. Because for every millionaire actor there are hundreds/thousands of wannabe actors. Who may or may not one day become a millionaire actor.
Not to mention all the rest of the TV/movie production chain: writers, directors, cinematographers, gaffers, production assistants, stunts professionals, etc, etc, etc
The "over-unionization" of that sector ensures fair pay and conditions (which sometimes are already grueling) for the professionals involved in this area of business. What happens without unions? Check the VFX companies for an example.