Many people that I talk to are surprised to learn that a number of Jews are skeptical about the historicity of the Exodus. Unfortunately this is a sad fact. But see this editorial by Barnett Kamen. Kamen, teaches at Barrack Hebrew Academy, summarizes the issue quite well in stating:
"When I teach biblical history to my students, I tell them that there are two issues that must be examined. First, did the event happen and were the characters real? And second, if they are, is the account of them historically accurate? Saying yes to both gives us an historical account. Saying yes to the first and no to the second gives us historical fiction, and saying no to the first gives us fiction. Minimalists, biblical scholars who deny the historicity of the biblical account, say we are dealing with fiction."
You can read the rest of the editorial here.