However, we don’t know if this book was printed in any significant number, at least no reputable sources attest to its existence.
Maybe it was the work of a „fan“, and self-edited.
The link I provided is to a newspaper in the UK and it includes details and sources. Your wishes don’t override reality.
I stand corrected, but the impact of this book…at least it‘ not known to me. I have no doubt that it exists. It does not look unrealistic.
And why should I be supposed to wish it didn’t exist? The Nazi state was a polycracy, i.e. many different governmental agencies were operating independently from each other, with many redundancies, and with Hitler as the puppeteer.
For the record: on account of my handicap, it is highly unlikely that I would have been spared in those days.