1. There isn't a single media (often, when your tribe is against another, you view the opposition as monolithic rather than a spectrum composed of different viewpoints)
2. And they're not insane, editors and social media algorithms are rational and reacting to reader incentives (but it is "insane" to mistake media sources for a rational human, because most media is about covering extreme events[1])
More in my media literacy guide:
https://github.com/nemild/hack-the-media/blob/master/README....
[1] The deaths that are most covered are a tiny fraction (<1%) of the way we die https://www.nemil.com/s/part3-horror-films.html