The jew is literally not Human. We just call it human for ease and simplicity, but it literally is not, similar to saying "the Human Race" but there are, in fact, different and distinct Races of Humans. What christianity is is judaism for (some) Humans (for judaism other Humans, there is islam and other corrupted practices and religions); a Human christian could "convert to" judaism for the jew, but they'd still be Human and just jew as some practices, not as Biology; a jew christian is still a jew.
Being a jew is in its biology -
From
https://ancient-forums.com/goto/post?id=1153282
There is the cohen i.e. jew gene, in a sense -
...
Abstract
It has been known for over a decade that a majority of men who self report as members of the Jewish priesthood (Cohanim) carry a characteristic Y chromosome haplotype termed the Cohen Modal Haplotype (CMH). The CMH has since been used to trace putative Jewish ancestral origins of various populations. However, the limited number of binary and STR Y chromosome markers used previously did not provide the phylogenetic resolution needed to infer the number of independent paternal lineages that are encompassed within the Cohanim or their coalescence times. Accordingly, we have genotyped 75 binary markers and 12 Y-STRs in a sample of 215 Cohanim from diverse Jewish communities, 1,575 Jewish men from across the range of the Jewish Diaspora, and 2,099 non-Jewish men from the Near East, Europe, Central Asia, and India. While Cohanim from diverse backgrounds carry a total of 21 Y chromosome haplogroups, 5 haplogroups account for 79.5% of Cohanim Y chromosomes. The most frequent Cohanim lineage (46.1%) is marked by the recently reported P58 T->C mutation, which is prevalent in the Near East. Based on genotypes at 12 Y-STRs, we identify an extended CMH on the J-P58* background that predominates in both Ashkenazi and non-Ashkenazi Cohanim and is remarkably absent in non-Jews. The estimated divergence time of this lineage based on 17 STRs is 3,190 +/- 1,090 years. Notably, the second most frequent Cohanim lineage (J-M410*, 14.4%) contains an extended modal haplotype that is also limited to Ashkenazi and non-Ashkenazi Cohanim and is estimated to be 4.2 +/- 1.3 ky old. These results support the hypothesis of a common origin of the CMH in the Near East well before the dispersion of the Jewish people into separate communities, and indicate that the majority of contemporary Jewish priests descend from a limited number of paternal lineages.
...
What did they find?
- Cohanim belong to 21 different Y-chromosome groups, but 5 of those account for nearly 80% of all Cohanim.
- The most common lineage among Cohanim (46.1%) has a specific mutation called P58 T->C, which is also common in the Middle East.
- A more detailed version of the CMH (based on 12 STRs) was found mostly in Ashkenazi and non-Ashkenazi Cohanim, but not in non-Jews.
- The estimated age of this lineage is about 3,190 years old, give or take about 1,090 years.
- The second most common lineage (J-M410*, 14.4% of Cohanim) also appears only in Cohanim (Ashkenazi and non-Ashkenazi), and is about 4,200 years old.
What does it all mean?
- Most modern Cohanim trace back to a small number of male ancestors.
- These ancestors likely lived in the Middle East, before Jewish communities spread across the world.
- The CMH and these lineages support the tradition that many Cohanim descend from a common ancient origin.
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Oly replied before I did - I knew the jew wouldn't accept the Human as a jew, but I wasn't aware that Humans weren't actually permitted, so when I said, "they'd still be Human and just jew as some practices", it is actually less than what I meant and as Oly said a "shabbos goy".