In the case of banning books, Christians who desire to live at peace in a society with variant points of view should not force others to read books only they approve. Rather, they should promote a free society where people can choose what they want to read.
That doesn’t mean we agree with everything nor shield the world from our influence, but it does mean we encourage and create safe spaces for peaceful exchanges of ideas.
Jesus never condoned violence for his disciples or other followers. Why would any current-day followers of Jesus even consider that Jesus’ ethic of love be associated with violence in action and/or word?