For all the talk of Obama being a closet Muslim, it's quite interesting that this open admission gets no airplay.
While it would actually be completely legal for President Obama to declare himself a Muslim, it would be illegal for him to declare that he was a jihadist for some Muslim theocracy such as Iran. This is essentially what Biden has said, but on behalf of a the Jewish state rather than a Muslim one.
Now his statement should not be confused with having affection for Jewish people, and pointing out this treasonous statement should not be misinterpreted as anti-Semitic. This is not so much a matter of religion as it is political allegiance. There are many Jews who are not Zionists.
Neturei Karta - Orthodox Jews United Against Zionism
International Jewish Anti-Zionist Network
Google query 'anti zionist jews'
What Biden has done here is openly declared himself a loyal agent of a foreign national doctrine. A doctrine which many people see as racist, imperial, and genocidal. Whether Zionism is good, bad, or otherwise is actually irrelevant for the purposes of this discussion, but the fact remains that Biden has openly declared himself to be a foreign agent. And he is our VP now.