Fisherman, what? According to the Bible the events of 2 Kings 25:22-26 took place after the exile mentioned in verse 21. Thus according to the Bible, after the exile (of that mentioned in verse 21) took place there were still Jews in Judah until the event which is described in verse 26. Furthermore, those mentioned in verse 26 did not go to Babylon but instead went to Egypt. Furthermore, the science of archaeology shows that some people remained in Judah while others were in exile in Judah. Also verse 12 mentions those who were not included in the group of exiles mentioned in verses 18-21.
Even if the ones (mentioned in verse 26) who fled from Judah into Egypt can correctly be said to have gone into exile, they left after other did and thus it can not be said that all of the people of Judah had been in exile for the exact same amount of time, such as 70 years or some other number of years.
As for Moses I don't believe he (or Yahweh) parted the red sea, however some scientists say the Hebrews might have crossed the "reed sea" (sea of reeds) and they say that a tsunami might have temporarily drained the reed sea. Other scientists say the archaeological evidence is there was no mass exodus of millions of Hebrews from Egypt to the land of Canaan. See https://en.wikipedia.org/wiki/The_Bible_Unearthed which says the following.
"The book remarks that, despite modern archaeological investigations and the meticulous ancient Egyptian records from the period of Ramesses II, also known as Ozymandias (13th century B.C.), there is an obvious lack of any archaeological evidence for the migration of a band of semitic people across the Sinai Peninsula,[16] except for the Hyksos.
... Finkelstein and Silberman argue that instead of the Israelites conquering Canaan after the Exodus (as suggested by the book of Joshua), most of them had in fact always been there; the Israelites were simply Canaanites who developed into a distinct culture.[19] Recent surveys of long-term settlement patterns in the Israelite heartlands show no sign of violent invasion or even peaceful infiltration, but rather a sudden demographic transformation about 1200 BCE in which villages appear in the previously unpopulated highlands;[20] these settlements have a similar appearance to modern Bedouin camps, suggesting that the inhabitants were once pastoral nomads, driven to take up farming by the Late Bronze Age collapse of the Canaanite city-culture.[21] "
Furthermore, when what I read and from documentaries I saw on television I think that the biblical Moses probably never even existed.