So.... just looking at this first clip, you do realize that the quotation they give from Josephus is from a defense of Judaism, right? If you read that full paragraph, he's refuting the various claims Greeks made against Jews, that being one of them. It's Book II, Paragraph 8 of Against Apion. He literally cites Apion as the propagator, if not the inventor, of the claim. They don't even cite the work properly, wrong paragraph and they really chopped up the passage.
I'm in favor of questioning the narrative. But great claims need great evidence. Preferably cited properly and not easily refuted by 10 minutes of research.