The bottom line is how can you count 1400 Palestinian casualties many women and 400 children as collateral damage? Israel lost 13. And, if memory serves, with all of the rocket fire, only 3 were civilians. Consider this along with the damage done to thousands of buildings and the ongoing Gaza blockade which limits imports and exports of everything including food and you can arrive at your own conslusion about Israel and group punishment..
Turkish military denies hitting civilians in airstrikes targeting PKK militants (Reuters)
from the article: NY Times: We turned down a different version of Goldstone retraction