Whether the Palestinian crowd was really civilians, or paid recruits or agitators or whatever, when a large group of people feel they have no better option than to walk through tear gas into live ammunition, this tells you there is a grievance that needs to be addressed.
And blame aside, there is one grievance there is no excuse for perpetuating. Palestinians, after 70 years, need to be part of some state — either their own, or Israel. Permanent statelessness is not defensible, and 70 years with no prospect in sight is permanent. And even if you assign all blame and all fault to the Palestinian side, they have been beaten, and beaten badly. When a people lose a war, they do not lose their right to be part of a state.
What about the Kurds, one might ask. Even though there is no Kurdish state, Kurds are part of some states, and hold citizenship, even if inferior. And after Saddam Hussein started killing Iraqi Kurds, he was charged with killing his own citizens. Whose citizens are the Palestinians?
This stateless circumstance may be defensible for a while. Not permanently. Not anymore.
The argument about the Palestinian position in peace talks is meaningless, as there are no peace talks. Israel won the war. Israel is under no particular obligation to negotiate peace terms. Backed by its superpower ally, the United States, it can dictate them. But permanent statelessness is not one of the options. Can we at least agree on this?