The tragedy with faceless / shapeshifter characters in hollywood is inevitably they'll be played by famous actors who need their face shown for marketability
People who choose red confidently as if it's so smart to choose the option with guaranteed survival just betrays that they are incapable of thinking of anything larger than themselves. Yeh great, you're guaranteed to live in a world of mass death and society collapses
Everyone in the world has to take a private vote by pressing a red or blue button. If more than 50% of people press the blue button, everyone survives. If less than 50% of people press the blue button, only people who pressed the red button survive. Which button would you press?