One valid argument Palestinians have made against Israeli practices is all about settlements. Israel has, over many years established "Kibbutzim" or "Clusterings or Gatherings" and other settlements all over the West Bank and Gaza. This seems to be an attempt to change the facts on the ground and perhaps expand Israeli land claims.
For there to be peace, the right thing to do would be for Israel to unilaterally halt settlement expansion and even withdraw from existing settlements. This would be a painful and dramatic process, removing Jews from their adopted homes and forcibly returning them to Israeli lands.
This moving process was begun in the Gaza strip. Israeli soldiers, in their largest Peace-time operation, gathered settlers and removed them from their homes, lands, greenhouses, neighborhoods, gardens and synagogues. This web site shows the process:
Israeli Exodus from Gaza
This was a painful, humbling process which was the right thing to do. The removal of Israelis from Gaza by their own military was carried out with love, concern and patience but with a determination to reverse the settlement trend in this first test case.
Once Israel had conceded that they should leave settlements as part of the peace process, how did the Palestinians respond? By allowing a foreign (Syrian) terror gang to take over and begin to fire rockets into Israel.
With this as a result, Israel cannot progress to the next logical step, which would be an exodus from the West Bank settlements. Israel is compelled to close crossings and invade Gaza to put a stop to the madness of Hamas rocket attacks.
Palestine will never become a state (comprised of the West Bank and Gaza) while the insanity of Hamas continues. Hamas militants bring down death and destruction upon their own people, their own families, by firing Rockets or participating in suicide bombing. That is all they are achieving. They are not accomplishing even a step toward a Palestinian state. Israel has to fight their ideology, there is no other reasonable choice. Although, Hamas can prevent more harm.
Wise Palestinian leaders could turn back the Israeli tanks and shells with a short declaration. It is not even that much.
Simply express a desire to have a viable Palestinian state, recognize Israel's right to peace and security and claim that right for yourselves by abandoning violence.
Teach your children to love their neighbors and they will have a future.
Turn your anger and indignation against radical militants among you. See that they are the cause of the suffering. When a militant fires a rocket from near a school, he is designing the death of your children as a feeble attempt to discredit the just actions against them. Israel would never fire weapons on Gaza were it not for militants firing rockets.
Hamas are not heroes loyal to the Palestinian people. They are the enemy of a Palestinian state and the enemies of Palestinian peace and prosperity because, in their minds, Israel should not exist.
Militants will never have their unjust desires fulfilled. Their attitude only leads to more pain, more suffering and the destruction of their own people. Eventually Hamas and other radical militants will be put down. If not by Israel, but Israel's allies. Even the Arab countries must concede Israel did the right and noble thing withdrawing from Gaza and they are justified in stopping the rocket attacks.
Palestinians and Arab nations that can influence events in the region must actively reverse the culture of suicide bombing and rocket attacks. Teaching violence and hatred to generation after generation is no way to get peace.
If the best we can get from Palestinians is rockets, suicide attacks and an endless culture of hatred and irrationality then what is so bad about Israeli settlements? They may even change the character of the lands enough to stop the madness.
Eventually, civilized nations will reluctantly exercise the power needed to end the evil ideologies of Hamas as they have against other evil ideologies in the past. It is possible to put an end to evil cultures, designs and ambitions, no matter how insurmountable Hamas may seem, they can be absolutely and utterly defeated should that be the only way to stop their attacks. The Nazi Third Reich and the Japanese Empire seemed utterly insurmountable and had conquered vast regions of the world. Their ideologies were utterly defeated, though not their peoples.
Just as a peace loving Germany and Japan are welcomed and embraced by the world after the defeat of their former regimes, it is not Palestinians that need to be defeated. They are long over due for having a Peaceful, stable status. It is the ideas of the militants that must be defeated.