The question is partly rhetorical but why is it that when the facts are so clearly against them the mainstream media continues to not only allow their networks to be used as vehicles for anti-Israeli propaganda but also blatantly promotes that propaganda themselves?
Why do they still allow their guests and analysts to talk about the so-called 'occupied territories' when those territories have not been 'occupied' since 2005?
Why do they continue with the myth that the people of Gaza are no better off than starving Ethiopians?
Check this short video out to see how dire things are for Gazans.
The issue of proportionality is another staple of media talking heads' 'analysis'.
Isn't it shocking that big, bad Israel has such a powerful defence force and ability to inflict destruction with its arsenal?
Critics point to the 14:1 ratio of Palestinians killed to Israelis killed, as if that somehow is relevant.
What do they want Israel to do to be proportionate?
Take the guidance systems off their missiles so they end up landing in random places?
Proportionality has an accepted definition under the Geneva Conventions and is summarised as not using any more force than necessary in order to achieve your military objectives.
i.e. If Israel wanted to take out a rocket manufacturing facility in Gaza then it's not allowed to carpet bomb, or nuke, the whole place. It's only allowed to use such force as is necessary to destroy the factory.
If you're sitting at home one night, are disturbed by a loud banging on the door and look out to see a madman with an axe trying to break in then should you grab your axe or your gun?
Using the gun is disproportionate but it achieves your objective of stopping the threat.
Such is the situation facing Israel.
The media is keen to promote the views of nearly anyone who accuses Israel of war crimes but doesn't apply that same standard to Hamas or Hezbollah.
Placing military facilities among civilian populations is a war crime.
Using schools and hospitals to launch rockets is a war crime.
Transporting troops in ambulances is a war crime.
That the United Nations tolerates Hamas using its schools and ambulances for military purposes shows clearly which side that organisation supports.
No surprise there, though.