I'm not sure what your point is. It is by no means clear that the Biblical Hittites are related to the Anatolian Hittites.
The idea of the non-existence of the (Anatolian) Hittites is, so far as I know, an idea suggested by Imanual Velikovsky in his book Ages in Chaos. This same book presents a discussion of evidence from Egypt for the some of the events related in Exodus.
ML/NJ