Someone who complains about lack of female representation immediately upon such a thought crossing their mind, often without an argument (let alone a logical and meritocratically-backed one) for, and sometimes even without examples of, women that should be included.
"Congratulations to Mark, Aidan, Zachary and Flynn of our university's programming team who won the gold medal at the national hackathon!"
Kneejerk feminist on social media: "wHy nO wOmEn?!?!?1?"
Everyone in the replies: "Do u want us to have lost or what. No woman even came close to making the team. Highest female scorer on the team selection test couldn't even manage half the points of the worst man on the team lmao"
Kneejerk feminist: "IMPOSSIBLE!! Selection test RIGGED!!!!1!"