But now, because everyone can publish, they lost control. So instead they are bombarding us with all sorts of contradictory theories and conspiracies. We have come to be unable to communicate. And maybe that is the intended goal. If you can't control the message, make communication itself worthless. People choose emotionally and based on tribal allegiances. It has become an identity war. We can't even communicate with our parents now, there is an "explanatory gap" between identity tribes.
For sure social media is propagating conspiracy theories, some of which are the modern equivalent of "Saddam can deploy his WMD in 45 minutes", but I don't agree that old media was doing the same. Quite the opposite.
There is no moment in history when we all look back and go, ah, that was a mistake. Nope. That only happens right now, we're all creating the world we want to live in today.