I look at this and think, it's almost right. If you reverse the direction, or simply see it flowing the other way (there's really no directionality on the image except for what's implied by the physics of light), trans kids go in... People who were born trans and trying to figure themselves out, push them through almost any system of oppression (schools, church, you name it), and out the other side comes "normal" (and deeply unhappy) kids.
IDK, it's not a perfect metaphor.