It is specifically happy horse manure.
The concepts of "yin" and "yang" have no observable basis in reality; they're simply lumping together several unrelated concepts. I might as well define the word "zurp" as meaning "related to football, painted green, larger than twenty stories tall, or battery-operated" and then note that the increase in the number of football teams, the increasing size of buildings, and the increasing number of battery-operated things all show a dangerous increase in the amount of zurp in the world that can only be addressed by painting green things in another color.
The "right side"/"left side" dichotomy you cite is a discredited (false) popularization of science, up there with the "10% of our brain" myth -- as is the disctinction you draw between "logic" and "intuition" (check out some of the psych research on how people actually solve "logic" puzzles; start with Wason's four-card task).
Basically, very few of the statements you make have any basis in reality. Most of it doesn't even rise to the dignity of error.
It is -- specifically -- a load of fetid dingo's kidneys that is not worth addressing in any greater specificity. It is intellectually vacuous when not actively wrong, and has all the conceptual merit of a half cup of warm spit. I would express myself with greater strength but there is that pesky new Membership agreement and I have no wish to face a suspension for telling you just how asinine it is.