Well, here is some of the "reality" as I see it.
It is my view that Hamas has been, and especially now is undercutting the struggle for Palestinian rights and making it possible to caricature Palestinians as bloodthirsty savages who just want to kill Jews -- and I think you and I know that is not really true at all. This will not only cost Palestinian lives now, but it will also set back their pursuit of justice and dignity by decades. They (Hamas, not Palestinians) have alienated hard-won support in the international community. And they have made it harder to stand for their recognition, rights, and justice.
In Israel, it makes responding to the notion that ‘they don’t really want freedom, they just want us all dead and gone’ exponentially more difficult. It may be that that is Hamas's goal, but that is not the goal of most Palestinians. Sadly, too, I think they have reinforced the flawed idea that any failure of brutality to subjugate others is evidence of the need for more brutality.
All of this will perpetuate great harm for Israel and Israelis, now and in future generations, on so many levels. Dehumanizing both Palestinians and Israelies, plunging both ever deeper into a morass of hatred and violence. There is no security and dignity for Israeli Jews if there is no security and dignity for Palestinian Arabs.
And that last paragraph is the key, really -- or so I think. Because without security and dignity, neither side feels that it can relax the "war posture" and try anything else.