I find it bizarre how you associate Jews with sexually immorality when Jewish tradition actually forbids such things. There are rules against masturbation, adultery, porn, cross-dressing. It's all covered. The commandments given to them by G-d allowed ancient Israel to become much more moral than the nations around them.
I don't really see how that weird music could do anything to prevent masturbation and such compared to actually truly knowing better. That being said, that music is no worse than some of the treatments the US tried back in the 1890's, such as Corn Flakes, (when society could at least recognize it as a problem.)
If there is any truth in what you are saying about Jews today, it is because they have abandoned their holy traditions and betrayed G-d and their ancestors, which is indeed a terrible evil thing.