I understand the premise. Go on Fox News, be rational, honest, friendly, reasonable and not all filled with hate, anger, conspiracies and lies as the Fox News hosts are. And the Fox News viewers will see the difference which will turn them around to become rational, honest, friendly, reasonable voters.
There is only one answer to change the hearts and minds of the Fox News audience, mortal attrition.
The good news is that with Republican health care hurting rural Americans far more than the rest of us – same for Republican education and Republican environmental laws – that attrition should be speeding up a bit.