While there are plenty of close-minded conservatives, in contrast Milton Friedman was genuine, engaging, and patient with all interlocuters. There are hundreds of hours of video available showing how not only was he gracious and humble, he was an excellent listener as well.
But despite this track record of affable behavior, he's demonized. But he's demonized not because he was a polemic, but rather because he was effective. And that's the unfortunate reality of today's political discourse.
For those who don't know about Milton Friedman, I highly encourage you to watch one of the many Youtube videos where he's being interviewed (such as when he was interviewed on the Phil Donahue show). You can judge for yourself.
That Phil Donahue show blew my mind when I happened to come across it at some point. Not exclusively for the deft conversation Milton had on full display but also of the high brow content that a midday talk show felt worthy to share with their audience. It was such a contrast to think of content like that to Jerry Springer decades later. What a change in genre.
I remember showing someone who absolutely loves fallout New Vegas a video about how terrible fallout 3 is in comparison, and he said he didn't want to watch it because the narrator was too left wing. That was strange