Has anyone actually suggested that anywhere on this thread?
The answer to that question is 'No', Flagship. As was the case with Israel's last incursion into Gaza, it's about proportionality of response.
The dynamic has changed in the Middle East since the Arab Spring, and the myriad events which sprung from it.
Insofar as Israel is concerned, a direct result was that Hamas could rely on increased support from Egypt when the Muslim Brotherhood took charge, allowing them to govern the place, pay wages etc....all of which helped quell unrest. However, their supply lines have been cut since the Army re-imposed their will in Cairo, and support from the wider Arab community has been further diluted due to Hamas' position as a Sunni group - resulting in withdrawal of support from Iran and Syria (though acknowledge that both were always much stauncher supporters of Shia Hezbollah). Regardless, with Egypt now also effectively running their own blockade of Gaza, Hamas as found itself seriously weakened.
The rapproachement with Fatah appears to be skin-deep, and there are rumours that more militant Sunnis within Hamas - boosted by the apparent success of ISIS - are acting independently of the leadership. It is these rogue elements that are believed to have carried-out the kidnap/murder of the three Israeli kids, and who are carrying out the majority of the rocket attacks.
Throw all the usual standing-dish issues/challenges into the mix, and you have a situation in Gaza which is spiralling out of the control of even Hamas - something perhaps reflected in Israel's decision to deploy ground troops.
In 200 years - if mankind survives that long - Religion will be a defined as a mental illness.