He was trying to get at Epstein being Jewish but it doesnt really remind me of a Synagogue or the style of the Second Temple. Having it flanked by Poseidon would also be an odd choice for a Jewish temple.
From all of what I've read the main thrust ultimately seems to be a mixture of Judaic heresies and some kind of occult and Satanic group hidden within Judaism. If you read between the lines of Protocols of Zion it seemingly indicates this as well. For starters, why on earth would a Jewish conspiracy style itself as the head of a serpent, above and unknown by the rest of the Jewish people? You have to be kind of fluent in both the occult and Christianity to make sense of it I think, as well as Judaism. For starters the ouroboros, or serpent eating it's own tail, is a pretty frequently used and well known occult symbol. In context of the Zion theory of course it would be the "serpent" conquering nation after nation circumnavigating the world until returning triumphantly to where it started. However, why on earth would one ever dream of using a serpent then as the symbol? Serpents and vipers are well known to not be positive symbols in Abrahamic religions. This becomes clearer when you remember that in Genesis, the serpent beguiles Eve, whose name loosely translates to "life" and that it is cursed by God and then God declares that it shall bruise the woman's heal and the woman shall crush its head. Now in this context, why on earth would one call themselves the head of the serpent?
To address his Jewish insinuation bluntly it's because this is not a bunch of Jews, but rather a secret inner clique of occultists, who are also called the Synagogue of Satan. I'm not entirely sure the reason so many Jews seem to be unaware of this including use of the hexegram as a national symbol, except for some odd view on Solomon. Regardless, it is because I think there was some truth to Protocols, and that what it reveals is the centrally occult nature of this group, and also an awareness in that in Christian circles the serpent is often seen synonymous with sin and that the whole symbolic attribute of this episode in Genesis is specifically a prophesy on the woman giving birth to the Savior who will eventually crush Satan, as well as being the destruction of this Satanic movement. It does however appear to me that this group is loathe to have both that nature within "Judaism" ever be connected to the concept of the Illuminati, which at once exposes them not just as Satanists but as a heresy that has concealed itself within Judaism as false Jews who have been operating in perpetuity since the Babylonian exile, and that these are a group of manipulators with little regard for Jews either who simply adopted the ways and religious beliefs of the Babylonians while casting aside faith in Judaism and that they have been adopting and fine tuning their understanding of various strands of the occult ever since.
It furthermore exposes the complete truth in longstanding accusations about this so called "Illuminati" also operating massive child abuse rings and probably brainwashing in addition to manipulating global finance. What else is not normally connected is why these people would both be what poltards usually think of as "the Jews did it" while also understanding it was the exact same group of people who backed Hitler and financed his rise to power, in which case the question would be, why? And the answer is because they aren't even Jewish to begin with, in the same sense as that it is highly likely Adolf Schiklgruber really was in fact the bastard of a Rothschild, and that that is partly why they allowed him to become the head of the NSDAP and had been secretly grooming him for this position all along, as well as partly explaining the occult core of the Nazis particularly the SS and their early occult origins.
All of this is because they're actually an occult movement, masquerading as a Jewish one, masquerading as a million other things, meanwhile every year Satanism and the occult gets more and more popularized and made mainstream. As for the various secret orders, they really are groups of occultists, not controlled by "the Jews" but rather controlled by higher and more tightly controlled levels of the occult, including but obviously not limited to Rosicrucians, the OTO, the Golden Dawn, Scientology, Mormonism, Great White Brotherhood sponsored New Age groups, and for reasons I do not understand Jehovas Witnesses.