Yes, through aaliya program. They immigrated legally, they did not come as tourist but as legal settlers and they purchased land from local legally. So there was nothing wrong for their immigration from the intention or from the law.
en.wikipedia.org
Arabs had no right to decide the fate of Palestinian region nor to judge the independence of Israel as theft. It was the right of the Palestinian people that consisted of Arab PAlestine and Jewish Palestine, and as both side couldn't reach any agreement then UN came with the Partition Plan 1947 as the international legal base.
It is not 100% true.
Only some experts from Human right watch, some inofficial opinions from some persons from UN agencies, multiple scholars and some countries that called Israel apartheid, and this view are also rejected by multiple experts and multiple countries.
UN agencies themself has not officially characterized Israel as practicing apartheid.
It is Israel government right to do regarding their immigration policy.
Just like Indonesia right to accept Palestine citizen to visit Indonesia but reject Israel citizen to visit Indonesia, or just like US's right to reject immigrant from China and India through DV lottery but accept immigration from some other countries through that scheme.
Same like it is easy for you to become Japan's citizen or Korean citizen or China's citizen if your ethnicity is Japanese or Korean or Chinese. Can we call Japan, Korea and China apartheid?
The reasons why Israel has not accepted the return of Palestinian refugees are tied to historical, political, and security considerations:
- Establishment of Israel (1948):
- The majority of Palestinian refugees left or were displaced during the 1948 Arab-Israeli war, which led to the establishment of the State of Israel. The conflict resulted in the creation of hundreds of thousands of Palestinian refugees.
- Demographic Concerns:
- Accepting a large number of Palestinian refugees back into Israel is seen by the Israeli government as a potential threat to the demographic balance. There are concerns that a significant influx of Palestinian returnees could alter the Jewish majority in Israel, impacting the character of the state as a Jewish homeland.
- National Security:
- From Israel's perspective, the return of a large number of Palestinian refugees is often viewed through a security lens. There are concerns about the potential impact on the stability and security of the region.
In the meantime Israel has received a lot of jews refugee from multiple arab countries during the 1948 war, and none of arab country is willing to accept them back either.