interesting thoughts @sausa. I once read a paper about black and white thinking, who approached this phenomenon scientifically. I don't remember everything, but this one-dimensional thinking pattern has many consequences. The logical consequences are the fact that there is a good chance that you can not always think equally nuanced, or that you are not able to find other options or possible solutions for small and big problems. There are always several possibilities. always.
The trick is to develop the ability to think at least two-dimensionally. From there you can practice to become a multi-dimensional thinker.
Research shows that the cause of this black and white thinking are patterns from your youth. You were never taught from your parents that there were several opinions, possibilities or solutions to a specific problem, because only the truth or the reality of your parents was pushed through. There was not much talking at home, not much discussed, let alone that there were lively discussions in which different opinions might be there. If you come from a family in which the possibilities were limited or absent, you could not develop those brain connections necessary to develop a multi-dimensional thinking pattern. Chances are that the parents also had a one-dimensional thinking pattern.

A misunderstanding is also to think that a multidimensional thinking level is associated with a high IQ or with a high level of education. On the contrary, these are two totally different aspects. You can be low educated and come from an emotionally healthy family and have a multidimensional level of thinking and you can come from an emotionally unhealthy family and have a high IQ, be well educated, have a top job and yet have a one-dimensional way of thinking. The underlying motives are then to show others (in fact still the own parents, even if they are no longer alive) that you can do it, that you are able to be succesful.

An example of black-and-white thinking is: it may or may not rain. This is one-dimensional thinking: rain/no rain. Compare: do/do not stay alone, yes/no relationship, this job/another job, having/ not having children, etc. Your brain is thinking from a known pattern. It is programmed and experiences life in this way.

Another dimension may be that it can rain hard or soft. Dew or mist is also a form of moisture, without rain. The possibilities are infinite. Yet another dimension is the composition of the rain: snow, hail, or raindrops? In my opinion, all aspects of life have multiple dimensions, and it is an art to get to know all those dimensions and to be open to them.