Man, where I lived, the most basic television package had multiple non-conservative news channels, and people always tuned into Fox anyway. They didn't turn on the radio and tune into nerd shit which was available like NPR, they tuned into Rush Limbaugh screaming about how Muslims were treated with kid gloves in this country (in the mid-2000s, no fucking less).
At some point, you have to accept that these people are not choosing conservative news sources because they don't have alternatives; they're choosing conservative news sources because they like what they're listening to, and because they dislike hearing the opposite.
We’ve got Decades of evidence that contemplation and ridicule is only going to make it worse.
What ridicule? Fuck, man, conservatives have been given nothing in this country but asspats and 'agree to disagree' for as long as I've been alive. "T-the mean liberals made fun of people like me on a liberal show..." as all the liberal talking-heads and community members gather 'round and tell them how fucking valid and wholesome they are doesn't mean jack fucking shit.
Humiliation and isolation is the only weapon that works against fascists, other than violence. We learned that in the 60s and 70s, and then got told otherwise by Very Important People in the 80s, looking for reconciliation with fascist cunts in order to share in the power during a brief revival of right-wing power - which then turned that brief revival into an enduring trend.
The Nazis in Germany weren't suppressed because the post-war order joined hands with them and told them that they were good boys and girls who just made some mistakes. The Nazis in Germany became verboten when the generation of the 1960s looked at the former generation and said, "My God, you were monsters."