Hi judge. Looks like Paul has done a much better job than I could have. Go away for a couple of days and...
Just one or two comments:
1) There's a pretty good chronology of kings and events for the 12th Dynasty, corroborated by archeological finds (stele, inscriptions, etc). As noted, the 13th Dynasty kings are more problematic, principally because of a
lack of archeological finds, the fact that many of the kings weren't related to each other, etc. It was the weakening of the power of the Egyptian kings that prevented any effective resistance to the "Hyksos" takeover - which may not have been an invasion, but rather an assimilation or combination event. There's quite a bit of evidence for the existence of foreigners living in the delta for a number of generations before the "invasion". However, I can find no evidence that the overall dates are nearly 50-100 years off as Setterfield claims.
2) Manetho is a later writer - and writing from an Egyptian standpoint. He was a priest in Heliopolis hired by Ptolmy I to write a history of ancient Egypt, so may not have been necessarily as authoritative as some people have made out (like Josephus, for instance). There may be a bit of historical revisionism or "filling in the gaps" with literary license where hard evidence or records were unavailable. In any event, even if he was 100% accurate, he makes no reference to plagues, even in the sense of a "plague of Hyksos".
Here's an interesting essay on Manetho's possible errors:
Competing for a Greater Antiquity. The only evidence of large scale plague at this period at all was from excavations in Avaris dated to
during the Hyksos period - mass graves with no attempt at the normal burial ceremonies, etc. Anyway, Hyksos occupation of Avaris is pretty solid on dates, as is their final abandonment of the fortress as I noted. There doesn't appear to be any Exodus event or even pharaoh that matches what Setterfield states.