Everyone (should be) familiar with MLK's Mountaintop speech he gave the night before he was assassinated. The phrase where he said "he hopes one day we judge a person by the content of their character and not the color of their skin."
Rev. Martin Luther King, Jr. wrote in his 1963 book Strength to Love:
Darkness cannot drive out darkness; only light can do that. Hate cannot drive out hate; only love can do that.
With this in mind, I am happy to bring this article to you: White Nationalist, KKK Member Who Marched in Charlottesville Baptized by Those He Once Hated.
Ken Parker, who was part of the White Nationalists at the Charlottesville rally, was interviewed by Deeyah Kahn, a Black woman and a documentary filmmaker at the rally. Kahn listened intently and treated Parker and his views respectfully, and treated him kindly when he developed heat exhaustion. This simple act started Parker on the road to question his hate.
Some months later, Parker approached a group of Blacks having a cookout near Parker's home. He and his girlfriend walked over and started talking with them. A couple months after that, after more such conversations, Parker was giving testimony and asking for forgiveness from the members of the All Saints Holiness Church. During his testimony, he said this:
"I said I was a grand dragon [recruiter] of the KKK, and then the Klan wasn’t hateful enough for me, so I decided to become a Nazi..."
Parker then went on to join this church and become baptized in it. He then went through the painful process to have his Klan and Nazi tattoos removed.
This proves that if you want to win people to your cause, you do it by being the kind of person and leading the kind of life that others want to emulate. You don't draw people to your cause by calling them vile things or threatening violence. You meet them where they are, reach out to them and maybe when they are ready they will follow you.
My personal philosophy is to leave every person I encounter better than how I left them. I always try to show kindness, politeness and consideration, especially when I am furious at someone or something. I always have a Markism on my tongue to make the other person smile as well. I believe that if we all did this in every personal interaction, the world would be a better place. I ask that you do the same.