Some parts of the country never really recovered from 2008. Obama took the smug liberal approach of telling people it was all over when it clearly was not all over. The country was primed for the Tea Party to step in and offer the promise of a remedy. You and I both know that the remedy was bunk, and it was just a rebranding of the same old far right, who saw that the Evangelical Christian movement that they were previously allied with had lost influence. And so into the propaganda brainwashing funnel went millions and millions of people.

Right wing media was already powerful and influential long before Trump started his own social media company and Zuckerberg switched sides. Blaming social media doesn't make sense either, because if it wasn't for social media, it would've been something else.