This may seem snide, but it's extremely rare for a union not to be protectionist. Mostly on account of how unions join together with unions for adjunct industries.
That said, I'm not convinced game development would be easily outsourced. Games are some of the most highly optimized pieces of software out there, as it's in their interest to squeeze every bit of performance out of consumer hardware. You can think of their target as an intersecting line between the game being playable on consumer hardware vs. the graphics quality users expect that would lead to the game selling. Optimization has a big payoff to increase the possible market to buy a given game.
