Though I respect your views KyrusRose I have to disagree with the lack of extra biblical evidence of the exodus. There is much found during the exodus.
Ill start here with an excerpt from the Institute for biblical and scientific studies:
It seems clear after looking at a number of ancient writers that all the ancient Jewish writers took the 430 or 400 years to cover the time in Egypt as well as Canaan. The Book of Jubilees counted 400 years from Abraham's entry into Canaan. Most of the Jewish writers counted the 400 years from Isaac's birth to the exodus. The actual time in Egypt was only 185 to 215 years according to most writers; however, Midrash Abkhir specifically states 86 years in Egypt (Rappoport 1966, Vol.2, 286-7). Another important note is that most of the Jewish writers pushed the date of the exodus back to about the time of the expulsion of the Hyksos. Joseph would have rose to power just before or during the time of the Hyksos.
Josephus says there are 592 years from the Exodus to the founding of Solomon's Temple (960 BC), while Sedar Olan Zutta says 480 years. The best explanation of this discrepancy is the omission of the oppressions in the Book of Judges (111 years). This was a common ancient practice as seen in ancient Egyptian king lists.
Josephus goes into detail quoting Manetho showing that the Jews were in Egypt. He equates the Jews with the Hyksos, and the Exodus with the expulsion of the Hyksos from Egypt by Ahmose who founded the 18th dynasty (1570-50 BC). Manetho had access to the original Egyptian hieroglyphics that modern scholars do not have. Yet modern scholars today, both liberal and conservative place the Exodus much later, and claim there is no evidence of the Exodus in Egyptian writings. The best explanation is to identify the Exodus from Egypt with the expulsion of the Hyksos for there is no other mass exit from Egypt.
A number of secular writers tell about the origin of the Jews with disdain. Some picture the Jews as leprous. They identify the Jews with the Hyksos who were expelled from Egypt by Ahmose. This expulsion is seen as a great defeat and humiliation, yet the Jews claim a great victory. This scenario is seen in other ancient writings like Ramses II and the war with the Hittites. Each side claims victory. Sennachrib destroyed 46 cities in Judah, yet Hezekiah claims a victory because he did not take Jerusalem.
The early Church Fathers all equated the Hyksos with the Jews, and the Exodus with the expulsion of the Hyksos from Egypt by Ahmose. The only exception is Eusebius who did not account for overlap of reigns, and omits the years of oppression.
A look at the New Testament gives convincing proof that Paul in Galatians 3:17-18 saw the 430 years starting with the promise to Abraham. The Jews were not in Egypt for 400 years, but the 400 years applied to their sojourn in Canaan as well which was controlled by Egypt. The LXX interprets it this way in Exodus 12:40. In Acts 13:20 it is clear that there are 450 years for the time of the judges, but this does not seem to square with the 480 years from Solomon's Temple to the Exodus, because the years of oppression are omitted. This would place the exodus back to the time of the expulsion of the Hyksos from Egypt.
A look at all the archaeological evidence shows that the best fit of the data is to identify the Exodus with the expulsion of the Hyksos from Egypt around 1570-50 BC The most important discovery is the Merneptah stele that mentions Israel which forced the revision of a number of liberal theories. Before the discovery of this stele scholars placed the date of the exodus and entry into Canaan much later. They were now forced to admit that Israel was already in Canaan at the time of Merneptah. This puts a terminus ante quem date of 1210 BC for the exodus.
The execration texts which date back to at least 1630 BC mention city-states like Jerusalem, Shechem, and Hazor, but no mention of Israel. Another inscription of Khu-Sebek mentions Shechem, but not Israel.
Most scholars will place the Jews, pro-Israelites, or even Jacobites in Egypt at the time of the Hyksos. There are many scarabs with the name "Jacob-El." This seems most likely to refer either directly or indirectly to Jacob of the Old Testament.
The expulsion of the Hyksos seems to fit well with the story of the Exodus. Not all Hyksos were pro-Israelites. It says in Exodus that a "mixed multitude" left Egypt. Although the Egyptians saw the expulsion of the Hyksos as a great military victory, the Israelites viewed this as a great salvation victory for them. This seems similar to other events recorded in ancient history where both sides claim a great victory.
Here is a full page on archeological studies made on the exodus and the source of the excerpt as well.
http://www.bibleandscience.com/archaeology/exodus.htm