I bet a good way to improve your rationality is to attempt to learn from the writings of smart, highly articulate people, whom you consider morally evil, and who often use emotional language to mock people like yourself. So, for example, feminists could read Roissy and liberals could read Ann Coulter.
This is a special case of a well known process in social science circles since at least the 1950's: role playing. It became popular after the work of Fritz Perls (a psychotherapist who started out in drama), who would have the patient do things such as play their mother or father (or tyrannical trauma family character of choice) to try and broaden their understanding of their life story and memory. It can be a very powerful technique. I have been in group psychotherapy sessions where people scream, bawl, and many other visceral responses get displayed.
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