There are many ideas to unpack in the preface to the book, "Who's really driving your bus today?" These ideas can be considered as generated by a thought system. Thought systems can be constructive and helpful to the welfare of homo sapiens, or destructive and harmful to homo sapiens. It might be interesting to take the ideas one at a time.
The first idea described in your preface is “The 21st century has been a time of profound challenge to cultural and personal peace in America. These challenges have impacted our core sense of reality in significant ways. Political polarization has left the two extremes in mortal combat, leading moderation to be attacked by both sides. Each side presents different “Truth”. There has been a growing intolerance and demand for “political correctness“ that leads to superficial soundbites."
We are living in a postmodern age where people have been taught that there is no truth. Truth is relative. As Kellyanne Conway said when challenged about the accuracy of the facts she was promoting that, "There are alternative facts." During the George W. Bush when an administration official was asked about the likelihood that the Iraqis had weapons of mass destruction, that truth is what those in power say it is. These attitudes have contributed to what Ken Wilber has called "nihilistic narcissism."
As a therapist I am inclined to share with clients the idea that truth is what works. I will ask, "How is that (belief) working for you?" We mental health professionals have adopted the scientific method hopefully which generates hypotheses, collects data to see if the hypotheses have predictive value, and adds to our knowledge. As a mental health services organizational manager I have always been focused on outcomes. Some key processes get better outcomes than others which leads to the question of "What are the best practices?" There are many factors to consider, and a systems model thought system as well as a linear reductive one is important for understanding that contributes to competence.
The current cultural polarization is over identity and belonging, Maslow's third need in his hierarchy. Whether policies work or not is often not considered. What is important is the affirmation and validation of one's chosen identity. It is by this validation and affirmation that one determines "truth." This agreement with one's preferred identity as the determining factor in determining truth often doesn't work and is not valid from the perspective of a scientific thought system but works very well for an ego driven thought system.
The key question might be "What is the thought system the person is using to determine truth?" It is the thought system the person chooses that is driving the bus. At lower levels of consciousness this choice of thought system is unconscious. It is an evolutionary imperative that consciousness be raised if homo sapiens is to survive as a species on this planet and in our solar system. Raising consciousness has been a prime mission of psychotherapy since its development in the early twentieth century. May our work continue and prosper.
The awareness of one's thought system is the first skill out of twenty one that
Cindy Wigglesworth describes in her model of spiritual intelligence.