> There was never a country called Israel until 1948. It was always Palestine.
Palestine was never a country before 1948, immediately prior to 1948 there was a British Mandate[0] with the name Palestine, but this mandate included land that would eventually turn into countries like Jordan(which just so happens to be a country with a Palestinian majority population). After 1948 and before 1967 the West Bank was annexed by Jordan and Gaza was occupied and administered by Egypt.
The idea of a nation called Palestine is arguably a more recent invention than the nation of Israel.
Jewish immigration to Palestine was initially accomplished by buying land from Arab landowners during the time when it was ruled by the Ottoman Empire.
> Is that why millions of Palestinians are refugees in other countries?
Palestinian refugees are defined differently by the UN vs essentially all other refugees.
Palestinian refugees fall under the UNRWA while normal refugees(i.e. refugees from essentially all other countries) fall under the UNHCR. The UNRWA definition is hereditary while the UNHCR definition is not. This hereditary definition is largely why the Palestinian refugee populations can increase over time in other countries so easily vs normal refugees.
> those people had to run away from Palestine because of Israeli murderers
There were multiple reason they(or their ancestors) left, there was plenty of violence when Israel was created but it wasn't like it was just one side attacking either. Regardless it's quite strange that someone is still considered a refugee despite potentially having never even been to the country they are supposedly a refugee from, especially since that doesn't happen for refugees from other countries(at least with how the UN defines refugee).
There was a war, people fled and were expelled from their homes for various reasons, Jews lost their homes as well due to the war. Sometimes fleeing a conflict is the least bad option. I have grandparents that had to flee their homes due to living in a country that was on the losing side of a war, they never got their homes/land back. I would probably even be considered a refugee by the UNRWA definition of refugee used for Palestinians. After Israels independence most Jews living in Arab countries were also forced out of their homes/land, I don't see Jews trying to get their original homes back in those Arab countries either. We can't go back in time and fix all the historical wrongs in the world, we have to move forwards.
It's the same people, on the same land, practicing the same religion, speaking the same language, with the same alphabet, with the same capital, with the same place names, with the same cities, with the same core texts, with the same national holidays.
But that's somehow nothing? At this point you'd have to actually work hard to figure out what's not the same.
Israel is an example of anti-colonialism, where the original inhabitants of the land were able to take it back from invaders.
It's amazing how everything you say above is proveably false.
They are not the same people. Modern day Palestinians share more ethnic heritage with the land's original inhabitants than European Zionist settlers.
The religion of the region has been different throughout time. Judaism is one religion of that region, and not the only nor even the first.
The language is not the same. Modern Hebrew that is spoken in Israel diverges significantly from the original Hebrew, which is more closely spoke by Yemeni Jews, for example.
Everything else is in your list is done by fiat, as even the the UN and the vast, vast majority of the world do not recognize Jerusalem as the capital.
Israel is the last major European colony and it's an anachronism that will go down in history as the final failed attempt at Western Imperialism.