Israel is the homeland of the Jewish peoples. it is NOT a Jewish state. one out of 5 citizen of Israel is not even Jew.
This (the bolded portion) is a patently
untrue statement (irrespective of the composition of the Israeli citizenry) - Israel is, or purports to be, a Jewish state - as evidenced by it's own Declaration of Independence:
Israel50 - UK Office - Declaration of Independence - English Text
And the Basic Law of Israel - specifically Section I of the following portion of the Basic Law (among others) which declares
"in order to establish in a Basic Law tile values of the State of Israel as a Jewish and democratic state.":
Basic Law: Human Dignity and Liberty - Wikipedia, the free encyclopedia
In citing the Basic Law of Israel above, it is important to point out that Israel does
not in fact have an actual written constitution (the Basic Law is the closest thing it has to a constitution) - even though it's own Declaration of Independence stated that a constitution would be formulated and adopted
no later than 1 October 1948.
It is also important to note that adopting such a constitution was a
requirement of UN Resolution 181 - a document which forms the basis for the legitimacy of the existence of the State of Israel in the eyes of the international community.
Finally, it's sorta hard to get away from the fact that the national flag of the State of Israel contains a rather large
Star_of_David, right in the center of it.
This is not some sort of abstract artistic symbol which has no inherent meaning, as can be seen by the link embedded above.
Personally, I'd suggest that you drop this "talking point" (that Israel is not a Jewish State) from your list - since the likelihood of convincing anyone of it is highly dubious at best.