Very Right. I have come to the conclusion that it is mostly Emotions/Feelings over Intellect/Rationality though they are interlinked together. To suppress the former and give free reign to the latter takes a lot of self-control which can easily crumble when the right buttons (sometimes unknowingly) get pushed. One way to control this is to minimize all externalities which could trigger an emotional response eg. it is easier to have a rational conversation via simple text (various modes) vs. face-to-face where tonal/non-verbal cues can trigger unwarranted emotional responses derailing from the subject at hand; Biology, Psychology, Operant Conditioning etc. are all relevant here.
See also The Rationality Paradox: Balancing Logic and Emotion - https://fastercapital.com/content/The-Rationality-Paradox--B...