No we haven't. We send hundreds of millions of dollars of military aid every year to Israel who keeps Palestinians as second class citizens.
An entire nation was created for Palestinian Arabs, it's called Jordan.
The Palestinians in Israel elected terrorists to form and run their "government" with the stipulation in their founding documents that the Jews be eradicated, either killed or driven from Israel, their natural, ancestral, and modern home.
They do not even recognize the right of Israel to exist.
More than a million other Israeli Arabs choose to live in Peace with their Jewish Neighbors so their burden is of their own making.
If a US state sent hundreds or thousands of missiles and mortar rounds into a neighboring state they'd be eradicated or at least would be crushed until they no longer had the means and will to fight.
If the Palestinians in Israel lay down their arms tomorrow there will be peace.
If the Jews of Israel lay down their arms tomorrow, there will be no more Jews in Palestine and no more Israel.
It's up to the Palestinians in Israel to reconcile all of that before they have any room to complain about being "second class" citizens or anything else.