"Jews" aren't mentioned in either of Troubadour's posts.

This is not exactly true. Israel and Israeli is mentioned, and we know that Israel is known as the Jewish State, both within Israel and to the world in general. It was created specifically as the Jewish Homeland. Israel is the proxy word for Jew/Jewish in that post.
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"How many Israelis are treated thus in surrounding Arab states?"

This is an easy one.

The easy answer is none, zero. This is not a matter of Arab/Muslim benevolence...there are no Israelis in the surrounding countries.

The harder answer is that Jews in those countries are treated as second class citizens, if they are considered citizens at all. Some of those countries don't have enough Jews to populate a synagogue, or even a Minyan (Ten Jews need to form a quorum for communal prayer.) Property is confiscated, Jews are hanged as spies after show trials, and if they are allowed leave those countries, it is with hardly more than the clothes on their backs. One could write a book about this, and many have

[for population statistics of Jews in Muslim countries, Arab countries, and the world in general, go to--
   --wikipedia.org/wiki/Jewish_population_by_country--      ]