Its called appealing to authority.

As long as the media can keep pushing that they themselves are a moral authority of Truth. People will not question the narrative that is given to them. That is why the tech firms and media work in concert because it destroys that pillar on which their whole house is built.

If you look at history, at the start of this nation hundreds paper and leaflet outlets existed in the colonies pre and post revolutionary war. Eventually money people started to figure out you could sway public thought through paper and sought to shink the access and distribution. We've seen though through history (the Pulitzer and Hearst spat is a great example), now we're seeing it happen in real time because of the internet has such a large reach. The powers at be can no longer keep the genie in the bottle. So they have to discredit it via logical fallacies.