Can you explain with 1 example ?

General 1: Your game's protagonist is a POC dealing with harassment in Trump's world by dodging text bubbles.

General 2: Your game's protagonist is a Queer child using their imagination to create a world to deal with real life problems (ie fighting a dragon may be MC facing down a bully).

RJ Challenge - Must Keep Moving 1: Your game's protagonist is a queer character dodging hate and collecting colors to set off rainbow powers, which is temp invincibility.

RJ Challenge - Must Keep Moving 2: Your game's protagonist is an animal running from a forest fire. You use the game to talk about problems facing the First Nation and loss of habitat/land through encounters and pop-ups.

It's mainly just realizing that way too many games the protagonist or MC(s) are straight, white and male simply by default and asking those participating in Rainbow Jam events to combat that with cognizant game design.