This was the quote that jumped out at me:
It’s a parallel world, and to drop in on it from our own can be a truly disorienting experience, like attending a midnight screening of a cult classic that everyone in the theater but you has memorized. You’ll encounter storylines with which you are unfamiliar, key figures you’ve never heard of, nicknames and references that you will not understand. This world is fueled by dubious news stories that are published by websites you do not read, validated by experts with no relevant credentials, amplified by Limbaugh and his peers. It is a world that excludes all divergent opinion, one that is predicated on an entirely separate set of facts and sources than the one relied upon by the rest of the press.
An excellent bit of writing, and it described things perfectly.