I'm astonished that facebook is successfully able to pull the "we're a platform, its not our fault people are using it illegally" excuse here. There is a huge difference between allowing people to freely post content on places like FB, twitter, or Reddit, and selling access the attention of people that fit specific characteristics. How long until the tech giants are held accountable for willfully skirting decades of…
If you mainly advertised for employees in certain newspapers you'd get people of a given political leaning. If you advertised on the radio at 6 in the morning you probably wouldn't get anyone under 35. It's not obvious to me why employers should be able to use the implicit filtering traditional media provides, but not the explicit filtering new advertising platforms provide.
When Facebook decided that they we're going to pick and choose what content people could access, for their own benefit, then they picked up more liability than someone literally broadcasting to everyone in range