The true-believer Village Voice Lefty reasoned thusly: all women are feminists, all feminists are Leftists, and Dr. Sanity is not a Leftist, therefore Dr. Sanity is not a woman.

Notice that the Lefty was soooo confident that Dr. Sanity is a man that the Lefty didn’t bother to check Dr. Sanity’s web page.

This mistake is so common among feminists and their fellow travelers that among men’s rights activists it’s abbreviated “woman=feminist”.