How exactly?

The Dome of the Rock is not in Gaza, it's in the West Bank, and in excellent shape: https://en.wikipedia.org/wiki/Dome_of_the_Rock

Designated by UNESCO as a World Heritage Site, it has been called "Jerusalem's most recognizable landmark"[9] along with two nearby Old City structures: the Western Wall and the "Resurrection Rotunda" in the Church of the Holy Sepulchre.[10] Its Islamic inscriptions proved to be a milestone, as afterward they became a common feature in Islamic structures and almost always mention Muhammad.[1] The Dome of the Rock remains a "unique monument of Islamic culture in almost all respects", including as a "work of art and as a cultural and pious document", according to art historian Oleg Grabar.[11]

Gaza itself isn't what you'd call a cultural touchstone, it's just an autonomous zone run by its duly elected government named: (*checks notes) Hamas? That doesn't sound right.

But hey, if you're really pissed off, tell Egypt to re-open their border crossings, might help ease the suffering.

The reason they haven't is because the last time someone was nice to the Palestinians, we had https://en.wikipedia.org/wiki/Black_September

The PLO's strength grew, and by early 1970, leftist groups within the PLO began calling for the overthrow of Jordan's Hashemite monarchy, leading to violent clashes in June 1970. Hussein hesitated to oust them from the country, but continued PLO activities in Jordan culminated in the Dawson's Field hijackings of 6 September 1970. This involved the Popular Front for the Liberation of Palestine (PFLP) seizing three civilian passenger flights and forcing their landing in the Jordanian city of Zarqa, where they took foreign nationals as hostages and blew up the planes in front of international press. Hussein saw this as the last straw and ordered the Jordanian Army to take action.[10]

Jordan allowed the fedayeen to relocate to Lebanon via Syria, where they later became involved in the Lebanese Civil War. The Palestinian Black September Organization was founded after the conflict to carry out attacks against Jordanian authorities in response to the fedayeen's expulsion; their most notable attack was the assassination of Jordanian prime minister Wasfi Tal in 1971, as he had commanded parts of the military operations against the fedayeen. The following year, the organization shifted its focus to attacking Israeli targets and carried out the Munich massacre against Israeli athletes. Though the events of Black September did not reflect a Jordanian–Palestinian divide, as there were Jordanians and Palestinians on both sides of the conflict, it paved the way for such a divide to emerge subsequently.[12]

Not great neighbors to have.