Gender Critical (GC) Share definition Flag Someone who is no longer accepting that gender identity must match the one assigned at birth. As a Gender Critical (GC), I was assigned male at birth, but I now identify as a woman. Gender Critical (GC) by Joan K Rowling March 29, 2022 0 0 Get merch Get the Gender Critical (GC) mug. Buy Now — $32.95 See more merch