Judaism is a religion. There is only a single race, the human race. Boy do I get tired of repeating this. Humans share 99.9% of our genome with one another. However, since the genome is composed of three BILLION base pairs in the DNA molecules, the remaining .01% represents three million base pairs, enough for DNA fingerprinting and superficial morphological differences.
If you are born into a Jewish family (even if your mother is a convert who happens to be from oh, let's say, Cambodia), you are considered Jewish by the mainstream of adherents, until and unless you do something to make yourself apostate. So even if you never practice the religion as an adult, as long as you don't put another God before the God of the Torah, or claim that God can manifest as a human being, you will still be Jewish. This is why atheists Jews aren't apostate Jews, for they certainly have no other Gods before Yod Hey Vov Hey.
PS How many people out there consider themselves Catholic, or Methodist, or something else, only because it was their parents religion, but not because they practice it?
If you are born into a Jewish family (even if your mother is a convert who happens to be from oh, let's say, Cambodia), you are considered Jewish by the mainstream of adherents, until and unless you do something to make yourself apostate. So even if you never practice the religion as an adult, as long as you don't put another God before the God of the Torah, or claim that God can manifest as a human being, you will still be Jewish. This is why atheists Jews aren't apostate Jews, for they certainly have no other Gods before Yod Hey Vov Hey.
PS How many people out there consider themselves Catholic, or Methodist, or something else, only because it was their parents religion, but not because they practice it?