[bmunro]

I would say it is the case.

http://en.wikipedia.org/wiki/Law_of_Return - Allows almost any Jew or relative of a Jew to migrate to Israel and quickly gain citizenship.

http://en.wikipedia.org/wiki/Citizenship_and_Entry_into_Isra... - prevents residents of Iran, Afghanistan, Lebanon, Libya, Sudan, Syria, Iraq, Pakistan, Yemen and areas governed by the Palestinian Authority from automatically gaining residency and citizenship through family reunion and marriage.