If you can’t discuss politics 100% dispassionately then, in my opinion, you shouldn’t discuss them with anyone you’d prefer not to loose as a friend. Even if you can you are playing with fire. As the posts in this discussion (and so many like them) demonstrate, many have a complete lack of respect for views that differ from their own, and often that disrespect extends to disrespecting the other viewholder as a person. Because of this lack of respect, or perhaps by virtue of a feeling of intellectual and/or moral superiority, many insult the differing views or the person holding them or feel required to teach/correct the poor ignoramus on what is Correct Thought.
Quite a shame really that in this supposedly enlightened and free-thinking time we have such contempt for diversity of thought and can’t appreciate our common humanity and the respect that should be inherent therein.