In particular I saw 2 absurdities in your anti-scientism slides.
The first absurdity is that you claim the impossibility to rationally understand or analyze consciousness, and at the same time you claim to bring rational arguments to draw some conclusions about consciousness, in particular issues of "cognitive dissonance". These 2 claims contradict each other.
The other absurdity is that your rational approach to psychological issues remains a purely theoretical speculation disconnected from any care of observational check of the conclusions of your abstract reasoning. In particular you claim the ability to conclude that the belief in chaosogenesis would be a cause of cognitive dissonance. For such considerations in such subtle matters of psychology to not be purely speculative and possibly completely wrong (or fall into the fault of ridiculous irrelevance), would require that this possible cause of cognitive dissonance, as you present it, was observationally confirmed to be the main cause (or at least the main ideological cause) of cognitive dissonance that can be observed in real life. But where are your observational confirmations of this claim ? The actual facts are:
As explained in the article and video by Greta Christina I referenced in a previous post, atheism does not lead to any nihilism, as there are many atheists finding full sense of life and not coming to any nihilism. This may be a mystery to you but it is nevertheless a fact and thus has to be accepted as such.
My own experience (as I have been evangelical Christian in the past) points to the opposite conclusion to yours, which is that among ideologies that may cause cognitive dissonance, Christian faith can be devastating, much worse than any atheism. As a personal experience, it would be senseless to try arguing in theory whether it is correct or not, and no philosophical treaty can change anything to this reality. No amount of arguments could convince me of the non-existence or impossibility of my own life. Now as a fact, it can also be explained, as you can see other authors doing, following my links "About the psychological damages of Christian faith".
In conclusion, your own victorious failure to make correct theoretical guesses about psychological issues, still does not suffice to validate your belief in the impossibility of any rational understanding in this field. Now why should I be interested about treaties that you read and that led you to such absurd standpoints as you are putting forward ? Such treaties are likely to be quite misleading. A real abuse of reason and a serious source, maybe not of cognitive dissonance, but at least dissonance between beliefs and reality. Thus, no thanks.