[Pharmboy]

You're mixing up the religious aspects of Judaism with its cultural and genetic apects. Greeks who leave the Greek Orthodox Church or Armenians who leave the Armenian Orthodox Church, etc. etc. do not cease being Greeks or Armenians.

[MestaMachine]

Jew is NOT a race OR an ethnicity. There are, for example GREEK Jews and ARMENIAN Jews. Israeli Jews and American Jews. There is no where on earth called Jewland.
There are white Jews and black Jews, Chinese Jews, and brown, *hispanic Jews but you can’t do a blood test to determine who is Jewish.
If you intend to NOT be Jewish, then stop calling yourself a Jew and stop embarrassing the rest of us who are NOT atheists or secularists.
That is the point. Culture has nothing to do with it. If you are a CULTURAL Jew, you would practice Jewish traditions. THAT is the culture. Atheists and secularists don’t adhere to those traditions either, so they are not CULTURAL Jews.