Coffee ice cream

When I was a boy, I met my mother's father for the first and only time - and besides him buying me coffee ice cream, which I found disgusting - I learned that he was very anti-Semitic.  We look at 2nd Corinthians, where Paul tells us that each of us has an opportunity to leave our old life behind and being a new life.  I gently challenged my grandfather on his behavior.  Will my grandfather choose to begin a new life?