Can Jewish people always emigrate to Israel?

Answer 1

According to the Israeli Law of Return, the answer is yes. Despite the difficult logistics involved, Israel accepts many thousands of Jews each year, who immigrate from all over the world.

It is worth noting that prior to the Establishment of the State of Israel, Jewish Immigration to Israel was highly regulated and often illegal.

Answer 2

Because that's the only place in the world where he can be a Jew, without excuses

or concessions to the non-Jewish culture at large, and even if he makes them, without

being viewed uncomfortably as some kind of mysterious creature and being suspected of

all kinds of things anyway.

Answer 3

In the most simple sense, i.e. By what mechanism can Jews always immigrate to Israel? -- The Israeli Law of Return of 1950 says that any person recognized by the Orthodox Rabbinate of Israel as a Jew can freely immigrate and become a citizen of Israel.

If the question is asking why this is acceptable practice, the answer is that Israel is a nation-state, and like other nation-states it has a duty to secure the rights of the ethnicity that is supposed to be the majority. This is the practice of other nation-states as well such as Germany (for ethnic Germans), Lithuania (for ethnic Litvaks and Lithuanians), Greece (for ethnic Greeks), Turkey (for ethnic Turks), Armenia (for ethnic Armenians), etc. Jordan even has a Right of Return for Palestinians which is why 60% of Jordan's population is ethnic Palestinian. Israel was also specifically designed as a Jewish National Home, so it would be rather odd if it were difficult for Jews to become citizens.