Why is a concrete wall dividing this school in Jerusalem?

[Yonoz]

No one is claiming Jerusalem is not very important to Islam, rather in response to:

Both have religiously historical sites within the city of Jerusalem that are the utmost holy to the respective groups.

I replied:

Mecca and Medina are "utmost holy" to the Islamic religion, Jerusalem isn't even mentioned in the Koran.

You dispute the latter part of that statement, but you do not dispute the fact that Jerusalem, important as it may be, is not utmost holy in Islam. Now that semantics are out of the way, let me remind you of an earlier statement:

It is considered by some to be the place where Muhammad ascended to the heavens, and inside the Dome of the Rock there is a rock traditionally believed to have Muhammad's footprints, but that is little compared to the significance of other cities such as Mecca and Medina.

Is there anything factually wrong with this statement?
No one is contending the importance of Jerusalem in Islam, but it is not the holiest site. It is however the holiest site in Judaism. Furthermore, even while in Israeli territory, the Temple Mount is controlled by a subversive Muslim organisation. Jews are forbidden from praying and studying there, sometimes forbidden from entering at all. Yet you hold and spread an unbased paranoid delusion of Israel destroying the Muslim sites there.
Maybe all these prophecies and fears are fulfilling themselves.

The early Arab period was also one of religious tolerance. However, in the early 11th century, the Egyptian Fatimid Caliph Al-Hakim bi-Amr Allah ordered the destruction of all churches and synagogues in Jerusalem, a policy reversed by his successors. Reports of this were one cause of the First Crusade, which marched off from Europe to the area, and, on July 15, 1099, Christian soldiers took Jerusalem after a difficult one month siege.

Jerusalem - Arab Caliphates, Christian Crusaders, and early Ottoman rule (638-1800s)

I did not justify the murdering of 81 peaceful Jews in Hebron in 1929, but we know that attack was a result of clashes in Jerusalem after the Jews decided to get Al Buraq wall or the Wailing Wall. Palestinian sources can tell you the opposite of what you claim... if you show ten pictures of Jews victims, I can show 1000s pictures of Palestinian victims.

I recommend you read up on the facts: Riots in Palestine of 1929

I do not deny that city is holy place for Jews and Christian, but surely you can set a theory and convince 1.3- 1.5 billion Muslims that they have no rights in Jerusalem, and their faith for 1400 years is wrong!

Regardless of the misinterpretation that I have hopefully cleared above, sheer numbers are not a measure for the validity of facts. The entire population of the planet thought at one time that it is flat. Not only do Muslims have the same rights in Jerusalem, they even have the exclusive privilege of being able to worship on the Temple Mount while Jews cannot (can you see the irony?).
I assume peace will come when both sides arrive at a settlement which they deem fair. I think the PA should recognise the central role of Jerusalem in Judaism and Israel's delicate handling of the Temple Mount and holy places in general.