Walid, You think that because you've never heard about it, that therefore Jews just ignored it and complained about it. In reality, the idea has been proven ridiculous and therefore it's talked about infrequently. I remember a time when I was in school when one of my "friends" was telling me that the Jews killed Jesus. I believe his argument was stating in an accusing voice "Ah ha, you killed Jesus." I would say something, and he would repeat his argument. And slowly you begin to visualize about how one hundred years ago he'd be saying this chasing me with a knife. Some people argue things because they want them to be true so that they can be aggressive. And some people are impervious to logic.
Islamic State destroys part of Syria's Temple of Bel, monitoring group says (Reuters)
from the article: And supposing they did drink blood?