Defending Reality Does Have A Price

Some people may have good reasons not to be openly active in defending reality against all forms of pseudoscience, safety and economics for example.  However, if such reasons do not apply and one accepts reality, one has a choice regarding openly defending it, in spite of the following price:

Difficulties can arise when one challenges a friend on a topic upon which his or her identity is attached.  It is my policy to strongly challenge an idea that I find counter to reality as found through science and its methods.  However, I try to do so without attacking the person.  In such situations, agreeing to disagree respectfully is the best outcome if there are no changing opinions.  If the person resorts to personally attacking me, the conversation is over, and the relationship is over if the person continues.  Such a person no longer is worthy of my friendship. Unfortunately, this outcome has happened many times.