Made in Alexandria: The Origin of the Yahweh Cult

[Minimalist]

Not that he is the most reliable of historians but you should read Josephus ( mainly because he is all we have). Alexander Jannaeus after his campaigns in the north almost immediately turned south and after a long siege took Gaza in 96. This set off a chain of events which saw him at war with both the Ptolemies and the Seleucids - although they did not cooperate with each other. Jannaeus suffered a serious defeat and there was a rebellion among the Jews against him as well. He survived by the skin of his teeth but the rest of his reign was a cruel repression of his own people. How much time he could have spent instilling "judaism" in Galilee is debatable based on the subsequent events which threatened the kingdom.

As for the rest of it, the Judaeans do not seem to have accepted converts or "forced converts" as "True Jews" ( probably the first known usage of that particular fallacy.) Certainly Herod's family was never accepted by the nobility and the priests as legitimate rulers because they were not of the Hasmonean family. The Samaritans, living just to the north of Judaea, are likewise rejected as True Jews and make it into the NT on several occasions.

So all this holy horseshit about Galilee seems to be a later xtian misunderstanding about these various peoples. BTW, the True Jews may have been right about Galilee. When Josephus' rebel army moved into the region the two largest cities - Sepphoris and Tiberias - shut their gates to him and called for Roman assistance.