This question must be one of my main issues.
Amidst a barrage of information on this website, I found the following that is also mentioned in your book.
Horus was called "KRST," or "Anointed One.”
The relation with Christ and Christians is obvious and actually hard to deny. Especially if you take into account this is but one of a multitude of identical life experiences shared between Horus and Christ also discussed in your book The Pagan Christ.
As we all know, we also have the term Anti Christ. If I'm correct, usually this is seen as that what tries to crush Christianity. Also, the anti Christ as in the beast mentioned in revelations.
I would like to put to you the idea the anti Christ, or beast, is possibly an allegory about the human body.
"He had ten horns and seven heads" could be read as "He had ten major nerve centres and seven chakra’s."
So instead of this dark and glooming idea that there is this force out to crush Christianity, it could very well be that the anti KRST should be seen as the material part of the joining of the opposites, spirit in matter, KRST and anti KRST, a perfect balance.