It is important to note that being a Jew has nothing to do with what you believe or what you do.
A person born to non-Jewish parents who has not undergone the formal process of conversion but who believes everything that Orthodox Jews believe and observes every law and custom of Judaism is still a non-Jew, even in the eyes of the most liberal movements of Judaism.
And a person born to a Jewish mother who is an atheist and never practices the Jewish religion is still a Jew, even in the eyes of the ultra-Orthodox.
In this sense, Judaism is more like a nationality than like other religions, and being Jewish is like a citizenship. 
Habaru (Hebrews) have a legit bloodline.
Jewish do not. Judaism is just a religion
practiced by ancient Habaru.
Once the floodgates opened to conversions,
this is when the infiltration of Zionism
crept into the religion. A Jew became
a shortened version of Hebrew (Habaru).
Judaism is NOT a race, therefore it can
have no bloodline. Judaism is only a religion
shared between human beings. And some of those
who infiltrated it, used it for their own
greedy purposes. This became known as Zionism.
Very few who consider themselves Jews today
have actual legit Hebrew ancestors. Most Hebrew
tribes today do not marry outside their clan
or bloodline and remain remote and isolated
in the same spot they fled from after the exodus.
This is the clean-up that Hitler was trying to
accomplish. Hitler didn't bother the actual Hebrew
tribes of Iraq, Iran, Pakistan, India, South
Africa (lost tribes).
Hitler went after converted Jews who were corrupting
the Hebrew religion.
Hitler never abused 1 single legit Hebrew tribe.
Though he went after millions of religious imposters
known as Zionists.
