"You'll never work in this town again," Kunis powerfully starts her essay, detailing an experience where she was threatened by a producer for refusing to pose semi-naked on the cover of a men's magazine to promote a film.
"What this producer may never realize is that he spoke aloud the exact fear every woman feels when confronted with gender bias in the workplace," she wrote. "We don't want to be kicked out of the sandbox for being a 'b**ch.' So we compromise our integrity for the sake of maintaining the status quo and hope that change is coming."
"But change is not coming fast enough to help my friends, my peers, or even our children," she writes. "In fact, a recent study by the American Association of University Women shows that the pay gap is closing at such a slow rate that it will be 136 years before women are paid equally to men."
The Bad Moms star says it took years for her to finally realize what she was experiencing was gender discrimination.
"Throughout my career, there have been moments when I have been insulted, sidelined, paid less, creatively ignored, and otherwise diminished based on my gender. And always, I tried to give people the benefit of the doubt; maybe they knew more, maybe they had more experience, maybe there was something I was missing," she says.
"I taught myself that to succeed as a woman in this industry I had to play by the rules of the boy's club," she explains. "But the older I got and the longer I worked in this industry, the more I realized that it's bulls**t! And, worse, that I was complicit in allowing it to happen."
Kunis then says she tried to change the rules by creating a female-run production company "to develop quality television shows with unique voices and perspectives," but still ran into similar obstacles, describing an email she received from a producer:
"'And Mila is a mega star. One of biggest actors in Hollywood and soon to be Ashton's wife and baby momma!!!'"
"This is the entirety of his email. Factual inaccuracies aside, he reduced my value to nothing more than my relationship to a successful man and my ability to bear children," she vents. "It ignored my (and my team's) significant creative and logistical contributions. We withdrew our involvement in the project."
"It's these very comments that women deal with day in and day out in offices, on calls, and in emails -- microaggressions that devalue the contributions and worth of hard-working women," Kunis explains. "I'm done compromising; even more so, I'm done with being compromised. So from this point forward, when I am confronted with one of these comments, subtle or overt, I will address them head on; I will stop in the moment and do my best to educate."
"If this is happening to me, it is happening more aggressively to women everywhere," she concludes her essay, before directing her words to the sexist producer she first mentioned. "I will work in this town again, but I will not work with you."
With the discrimination Kunis has received, it's no wonder she and Kutcher want to keep their kids away from the harsh eye of the Hollywood spotlight.