Perhaps you should read more about him and his books too before jumping so fast into conclusions. He isn't Icke. He is mainly known for his past life readings as he accessed the akashic records and he mainly helped people with their health issues with a really good track record, the center for A.R.E. in Virginia Beach is mostly based on holistic healing if I'm not mistaken. They started to notice that once he helped people with their health issues that often the issues were due to past lives and things which happened during them, including the time of Atlantis. Then they got more interested in Atlantis and wanted to know about it and started to study it even more in the readings.
I would agree with you there. Cayce was correct about some future predictions, but that's where it's easy to get things wrong because the future is never fully set in stone, it's just potential although I still struggle with determinism as I certainly believe in fate, yet some things still seem to be changing and happening later or not at all. The past has already happened and with the right tools it can be accessed.I'm wary of prophecies in general, they almost always fall flat, especially when they predict major disasters or the end of the world. I actually have a (quantum or many worlds) theory about why that is, but it's rather convoluted. Suffice to say, we usually end up living on in the quantum reality or timeline in which the major disaster that was predicted did not happen and life goes on. In this sense I'm actually a bit of an optimist, despite appearances. Sure, there will be a reality where things go to shit, but with the right mindset, it won't be ours. I am a believer in each person choosing the particular quantum reality they wish to inhabit and each choice we make shifts us slightly into another one.