OK.... Ishtar was a sex cult that bore no resemblance to Christianity.
If they were claiming God had a wife in a way that bore a resembance to Christian or Jewish beliefs then there might be a real debate at least.
Sacred prostitution?? really??
Well, in truth, the ancient Hebrews were a bawdy bunch. In a way, the excesses of paganism, be it fertility rights with orgies, human sacrifice, and other abominations drove the Hebrews into a state of greater morality, in rejection of these things.
But they were always right next door to them. Roman times must have been very hard, because some Jews leaned towards Roman ways, and others embraced asceticism, often isolated in rural enclaves. Jesus entry into this would be uncomfortable, because most Jews were in one extreme or the other, lost in Romanism or Hebraic law minutiae.