Supply vs. demand. The line for game development and VFX work extends around the block. You will never ever ever find good pay or treatment in those conditions. If your dream is the same as everybody else's dream, consider the cost of pursuing it.

If your goal is stable and well-paid employment, the other, much more practical option to unionizing is developing a different skillset that is valuable and in-demand. Jumping into a seller's market for labor is much better than jumping into a buyer's market.