Sexual harassment law is the legal architecture a society builds to name a harm that older legal categories refused to see. Before the late 1970s, when a supervisor demanded sexual access in exchange for keeping a job, or when a workplace was saturated with sexual hostility that drove women out, the law had no word for it. There were torts for assault, contract claims for wrongful dismissal, perhaps a discrimination claim if you could squint hard. But the pattern itself — sexualized power exercised against subordinates, mostly by men against women, structurally rather than accidentally — was invisible in doctrine. Catharine MacKinnon's intervention, beginning with Sexual Harassment of Working Women (1979), was to argue that this conduct was sex discrimination under Title VII because it imposed costs on women as women that men did not bear. The Supreme Court accepted the argument in Meritor Savings Bank v. Vinson (1986), recognizing the hostile work environment claim, and the doctrine spread from there into education (Title IX), housing, and into the laws of dozens of countries.
The romantic-law intersection here is sharp. Sexual harassment law sits exactly on the border between the legal regulation of intimacy and the legal regulation of work. It draws a line and says: sexualized conduct that an ordinary person would find unwelcome, in a context where the target cannot easily leave (because their job, grade, housing, or immigration status depends on staying), is not courtship. It is coercion using sexual content as the medium. The doctrine had to invent the category "unwelcome" precisely because the older framing — was she flirting back, did she really mind — was the trap. The legal innovation was to shift the question from the perpetrator's intent to the target's reasonable experience and the structural power imbalance.
At the collective scale, the law does four things. First, it sets a floor: there is conduct an employer or institution may not tolerate, regardless of local culture or industry norm. Second, it shifts liability: when supervisors harass subordinates and tangible job consequences follow, the employer is strictly liable under Faragher and Ellerth (1998); when the harassment is hostile-environment without a tangible action, the employer has an affirmative defense only if it had a complaint mechanism that worked and the victim unreasonably failed to use it. Third, it creates discovery rights and statutory damages that make private enforcement viable for people who could not otherwise afford litigation. Fourth, it generates a public discourse — every high-profile case retrains the collective vocabulary about what is and is not acceptable.
The doctrine has limits and pathologies the collective is still working through. It largely runs through employment, leaving harassment in non-employment contexts (street harassment, harassment of independent contractors before recent reforms, harassment in religious bodies covered by ministerial exception) under-regulated. It privileges complaint-based enforcement, which puts the burden on the most-traumatized person in the room to start a process that will probably end her career anyway. It rewards employers who build paper compliance — training videos, written policies, hotlines that route to HR — over employers who actually change the culture. Vicki Schultz's work documents how the "sanitization" approach (ban all sexual speech, discipline anyone who jokes) often co-exists with continued exclusion of women from the actual structures of power; the workplace becomes prudish and still hostile. And the doctrine struggles with race-and-sex intersectionality: Black women's harassment is routinely under-recognized because it does not fit the white-female-victim template the doctrine grew up around.
The #MeToo wave from 2017 exposed the gap between what the law forbids and what institutions enforced. Many of the most powerful offenders had been protected by NDAs, mandatory arbitration, and the simple fact that complaints disappeared into HR pipelines designed to protect the company. The collective response — state laws limiting NDAs in harassment cases, the federal Ending Forced Arbitration of Sexual Assault and Sexual Harassment Act of 2022, the spread of "Me Too" reporting laws and tolling of statutes of limitations — is a second wave: not new doctrine, but new procedural plumbing that makes the original doctrine actually accessible.
For a 1,000-Page Manual reader, the move is to see sexual harassment law as a worked example of how a collective converts a private pattern into a public norm. MacKinnon did not discover the harm; women had known it for centuries. She discovered the legal grammar that let courts see it. That is what Law 4 — Plan — looks like at civilizational scale: building the doctrinal scaffolding so the next generation does not have to argue from scratch that what happened to them counts.