This is ridiculous on all levels to someone who hasn't been indoctorined by the beliefs of religious views.
What's so ridiculous about it? What's ridiculous is to say that an anachronism of your own making is somehow applicable to a nation's descendency when all throughout history that nation has not used that definition, and who has a law system set up to actually determine how the nation continues. And that law system is not like you say it is.
If it was sacred law, I'd understand,
We've already told you that it is. All of halacha is sacred law. It is basically the body of law with which a Jew conducts his life in all facets. EVERY rabbi understands that Jewish law says a person born to a Jewish mother is Jewish, otherwise not.
As far as I know, it's something Jews just instinctively know based on tradition and oral law which no one has yet cited to me either.
Well, gee, that should cause someone to think, shouldn't it? 'Every Jew knows this instinctively based on tradition and oral law and yet for some reason I think I'm right and every other Jew in the world is wrong, including our own tradition, and our own oral Torah.' Please.
(Btw, oral law was written down about 1300 years ago, so it's not some old wives' tale, it's our entire body of Jewish texts)
And Muman has already cited several places. You just don't accept them. So why do you keep pretending as if you demand a citation and that will make your silly theories go away?
This just doesn't hold up in this argument, basically saying "the law said so, therefore this is how it is".
We have cited several places. Kiddushin 68b says it explicitly. That is the Talmud of Jewish law. We are not just saying it is therefore this is how it is. On the one hand you ask for citation, on the other hand you reject any citations as "Jewish law." Well, gee, don't you think "Jewish law" which is based on the Torah, would have something to say about who is Jewish and who is not?
Does American law determine who is American and who is not? Does Russian law determine who is Russian and who is not?
The only way I can be disproven now is to prove that Jewishness is not a race, this would therefore revoke any idea of Jews being related to Abraham, Moses, Jesus or the tribes of Judah.
Nonsensical. Judaism is not a race. We are a group of people descended matrilineally from the tribes of Yaakov. (Including a class of kohanim descended patrilineally from Aaron, etc). That is sufficient. Why do you need it to be a race?
It would also make the idea of anti-semitism, fiction.
Antisemitism, the explanations for it, the rationalizations, the attempted justifications, ARE all fiction. Why do you take them to be true.
What is true, is that a phenomenon in society exists whereby certain people have an innate hatred for Jews. This is commonly termed "antisemitism," which just means Jew-hatred. They will search for all hosts of excuses to justify their hatred, whether racial explanations, religious explanations, anti-zionist explanations, but they are all bunk. Usually hypocritical, often dishonest, and always based on a distortion of reality.
So yes, antisemitism is not a truthful thing. In that sense, it is a fiction. It is not justified. I realize this surprises you. But the phenomenon of certain people having a hatred for Jews does exist.
So what?