Yeah I've a couple of notions about that, synagogue of satan stuff already back in jesus days before kazhars were cool, and that guy https://www.youtube.com/watch?v=YSy6ENVAJlY , explaining the inner workings of "rabbinic judaism" which is mainstream judaism, which is pharisees legacy https://www.jewishvirtuallibrary.org/pharisees-sadducees-and-essenes