https://motherboard.vice.com/en_us/article/mbzz8x/twitter-youtube-wont-ban-white-nationalism-facebook

Last week, Facebook banned white nationalism and white separatism from its platform. This came after a Motherboard investigation based on leaked documents found that Facebook did not allow white supremacist content on the world’s biggest social network but did permit the other ideologies. Facebook changed this stance after a civil rights backlash, and the switch also applies to Instagram.

In the wake of that significant policy change, Motherboard asked Twitter and YouTube, both platforms with a white nationalism problem, if they would now ban content with phrases no longer allowed on Facebook, such as “I am a proud white nationalist.”