You are aware that what you are suggesting is the equivalent of saying that alchemy is just as bad as the rest of chemistry, or that general relativity will be

You are aware that what you are suggesting is the equivalent of saying that alchemy is just as bad as the rest of chemistry, or that general relativity will be disproven just like the Ptolemaic model was before it. Jungian psychoanalysis is not modern psychology just like alchemy is not modern chemistry. It used to be, but that is history. Psychometrics is still a part of psychology, but it is my opinion that they are on their way out, just like string theorists are on their way out of cosmology. You may be right that cognitive behavior therapy will be disproven some day (as may general relativity) but it is gross simplification to state that there is no difference in the quality of the models, theory, and practice of the psychoanalytic methods before it. The difference is as big as that of alchemy to modern chemistry. To state otherwise is to reject modern science. This also applies to Jordan Peterson which does not employ modern scientific methods in his theories, and can easily be equated to modern day alchemists. The bulk of the psychological field is working within the framework of modern science, even when historically this was far from truth, and even when certain famous individuals don’t. I reject your argument because I believe a difference in quality exists between scientific models. I believe scientific progress can be made, and I believe good science can yield better results than poor science. I believe that Myers-Briggs is an exceptionally bad science, exceptionally bad even in the context of psychometrics, which is still rather poor science. I believe there is no solid proof for existence of different personality types, and models that use personality types are inherently worse than models which use modern understanding of human interaction, behavior and cognition. Just like models that put the earth at the center of the universe are worse than models use modern understanding of gravity and mass.