There should be no doubt- both Israel and Palestine are places that have existed historically in the area most Western religions consider “holy.” Neither one existed in 1947 though. In fact, historically the land has been a pin ball, with control bouncing between outside powers, as well as both Jewish and Palestinian governments. Trying to keep track of control is like watching a long volley in a tennis match.
At the time historical Jesus would have existed, Rome ruled the Holy Land. At the time, the descendants of today’s Palestinians certainly did exist, but Islam as a religion did not yet. In the centuries that followed, the country bounced between foreign powers, eventually landing in the early-1500’s under the control of the Ottoman Empire, or modern day Turkey. For the next 400 years the Turks ruled over today’s disputed Israel/Palestine. At no point did the Palestinians or Jewish residents in the region rule themselves. Basically for centuries the region was under foreign occupation.
We all know of course that the Ottoman Empire came to end with the end of the First World War, and that much of the region then came to be under British rule. In places like Iraq, new countries were drawn on a map by the West. For Palestinians, they now lived in “Mandate Palestine,” under the foreign occupation by London. It would stay that way for close to 30 years, until Israel’s founding from the British occupied lands. At that time, the agreement was for two states- Israel and Palestine- to be drawn from the British occupied territories. Arab opposition to the Israeli state boiled over when Israel declared independence, war broke out, and Palestine never happened.
Of course I think that any just person believes there should be a Palestinian state in “the Holy Land.” There’s no just reason not to. There almost was about 30 years ago, when the Oslo I Accords were signed. The assassination of Israeli Prime Minister Yitzhak Rabin by an Israeli extremist, and terror acts and opposition by Hamas, Islamic Jihad, and Popular Front for the Liberation of Palestine, managed to derail full implementation. The Israeli right-wing sets out a position for a two state solution that is likely unattainable. Hamas and the other terror organizations (Hezbollah and Islamic Jihad) rule out negotiation altogether.
The main point though here is simple- there was no Palestinian or Israeli state on this land prior to 1948 for centuries. When we say Israel is on “occupied” land, we are treating the region in the way one might treat American conquest of former Native American lands, and it is simply not. These lands have been under occupation by foreign powers longer than anyone living was alive. The point should be to get to a two state solution. Pretending one side has a cleaner, clearer, more obvious claim to the land is bigoted propaganda that should be rejected by all civilized people.