I would hypothesize that many people are likely to reexamine their beliefs when regularly surrounded (IRL) by people who disagree. We're social animals; we seek

I would hypothesize that many people are likely to reexamine their beliefs when regularly surrounded (IRL) by people who disagree. We're social animals; we seek harmony with our neighbors, to an extent. I think Daryl Davis' achievement is changing the opinions of people who are surrounded by supporters. That's much trickier, and killing-with-kindness seems like the likeliest approach there.