I imagine that in 1776 the guys that penned the following paragraph had a very similar discussion about tolerance. If you haven't read it lately it is worth revisiting and sharing with your children. These are words that many men and women have given their life defending.
"We hold these Truths to be self-evident, that all Men are created equal, that they are endowed, by their CREATOR, with certain unalienable Rights, that among these are Life, Liberty, and the Pursuit of Happiness.--That to secure these Rights, Governments are instituted among Men, deriving their just Powers from the Consent of the Governed, that whenever any Form of Government becomes destructive of these Ends, it is the Right of the People to alter or to abolish it, and to institute new Government, laying its Foundation on such Principles, and organizing its Powers in such Form, as to them shall seem most likely to effect their Safety and Happiness."