Many progressives today insist that gender is fluid and that American law should abolish any distinctions between the sexes. Yet, ironically, many of these same people point to overly simplistic statistics derived from binary male-female categories to claim that women are the victims of wage discrimination and to demand more regulation, more government monitoring, and many, many more lawsuits. Surely, such a binary approach to categorizing workers and comparing wages is woefully outdated in our new woke world! According to progressive activists, sexism is the reason that the average woman earns only about 80 cents for every dollar earned by...