It is very smart that Jews are Jews if their mothers are Jews, not the fathers. It is a matriarchy, and we see the effects of that in its children: the different Marxisms are matriarchies, albiet this is an related happenstance to the larger point I want to make.
A quick aside: I always thought that Bene Gesserit of the Dune series were actually Jews and not Nuns as some people claim. They are Jewishness in it's complete form, a subversive and "womanly" people using "charms" and planted narratives (sometimes centuries in advance), and the right marriages to achieve power and control. Control through feminine guile and not direct confrontation.
Being a mother transmitted society, the mitochondrial DNA is what is important. That is where the genetic material is transferred. It is not a simple genetic transmission.
It also means that you can't really be "cucked" and the genetic code always passes on. Cucking matters a lot to Patriarchies because the man's family name and the genetic code being passed on means a lot. It is really all that matters! If you wish to use guile and subversion, however, the name means nothing. Reputation means nothing, because you can just hide under different names. In the matriarchy, you are ensured that your matriarchal DNA, the Jewish DNA, iS ALWAYS passed on, because the mother can not be cucked. Theywill encourage cucking in other cultures however and so they know how rampant it is.
When you are matriarchal, new names are also taken. Each new generation can have a different last name based on the right marriage into a new patriarchal family, and that influence is then used to cause further chaos.
I haven't read this anywhere but maybe Frank Herbert had this idea, or just didn't put it together just so.
It's all coming together.