When the Nazis invaded Albania in 1943, the Albanian authorities issued false documents to all the Jews residing within its borders (including the small Jewish community living there for generations) and kept their mouth shut. None were discovered. The whole country was declared Righteous Among the Nations in 1995.
[...] The Torah tells the people of Israel no less than 36 times to accept strangers who dwell among them with open arms and treat them with compassion, “because you were strangers in the land of Egypt.” [...]
Just for comparison, keeping the Shabbat and adhering to the laws of kashrut are mentioned far less. So how do we justify our abuse of those unfortunate people who have somehow managed to reach Israel and survive?