How very convenient for you.
No matter what is said about the foundation of your religion, you can say "That's what it says, but that's not how we interpret it, and since the interpretation is oral, there's no way you could know if you aren't a Jew".
Uh-huh.
It does have the advantage of allowing widely different versions of Judaism and allows them to change with the times, a luxury Islam does not have. The Christians have the option of ignoring the Old Testament, and some denominations do.
In any case, I suspect the "oral interpretation" was much different back when this stuff was written, and taken much more literally. It was probably still taken much more literally when Christianity and Islam were founded.
