People on the right are not working in good faith. There is no series of words you could say to any Republican politician, or most "regular conservatives," that would make them understand the error of their ways and move to the left. They believe that the way that society is ordered, or was ordered in some imagined past, is the way it must be ordered. And while there may be people in power above them that they are subservient to, they are not at the bottom of the social order either, and they must protect their place in the existing structures of power. The suffering and pain that they inflict on others is not out of a misguided attempt to make the world a better place. The suffering and pain is the point; to keep those that they believe ought to be below them in line, to put those who have gotten out of line back in their place, or to eradicate those who might upset the social order they seek to protect.
And liberals will join those on the right if something threatens their comfort.