What about free market deciding? You can't claim there should be less government regulation and flip and want more when something goes against you.
Twitter, like Facebook, Amazon, eBay, and other platforms, is in a funny position. One the one hand, they're best a platform, not a media company, and as such are expected to be neutral and not push and rhetoric or suppress free speech. They're not supposed to be an opinionated media company. On the other hand, they are supposed to filter out dangerous and pernicious content, which includes pornography, incitement of violence, incitement of terrorism, and dangerous fake news. All of these things require taking a stand as to what to qualify as dangerous, and what to define as fake or needing disclaimer. It's hard to argue about the fact that they are obviously slanted, but it's also hard to say that they are wrong for getting involved at all. Yelling fire in a movie theater is not protected by free speech laws, and the operator of the PA system in said theater should turn it off if someone is yelling fire on the microphone and seems imminently close to triggering a stampede due to fake news.