Look at the pictures, it is mostly women and children. One woman who was released was more worried about the Israeli bombs killing them than the Hamas captors, I would be worried her husband might be killed by the bombings.
Here are the latest casualty figures as of December 18, 7:00pm local time in Gaza (17:00 GMT):
Gaza
Killed: At least 19.453
Including at least:
7,729 children
5,153 women
Injured: More than 52,286
Including at least
8,663 children
6,327 women
Missing: More than 8,000