Twitter used to be "the free speech wing of the free speech party"[0]
The American left used to stand up and fight for free speech. Only eight years ago, the ACLU defended the KKK in court.[1]
0. https://finance.yahoo.com/news/twitter-still-free-speech-win...
1. https://www.aclu.org/press-releases/aclu-em-defends-kkks-rig...