Related story: Twitter is also fact-checking the Chinese
What he doesn’t seem to have thought through is that the speech liability immunity is what allows them to have a Donald Trump Twitter account in the first place. If they become legally liable for every crazy thing he says on the platform, they would have no choice but to delete his account completely. The Joe Scarborough murder accusation, something that could not possibly be true, is the most recent example. Twitter had given Trump plenty of latitude with this because they are protected from liability, but if that protection is removed, Twitter would be legally liable for Trump’s obviously false accusations, meaning that the woman’s family and/or Morning Joe could sue them. They would basically be forced to delete his account, or at least to delete that and other legally actionable tweets.
Trump seems to think Twitter has singled him out for unfair treatment, and he is absolutely right. What he doesn’t seem to grasp is that it has been unfair in his favor. Twitter has been giving him preferential treatment for years. He has composed hundreds of Tweets that would have caused Joe Average to be banned permanently, but he has never even been given a temporary blackout.