Very good point. If they are embracing lucifer this may very well be the cause of the happenings of the world today.
I think they try to connect with some Jewish identity not because they're real Jews (I don't believe that) but because some people are obssessed with Solomon's temple and try to add on occultic meanings to it that it wouldn't otherwise have had. Plus some of the occultists have tried to practice their own versions of Kabbalah.
I think that's possibly why some of them latch on to the Dan identity even though they don't believe in Judaism. They just grasp at anything that would make them feel special.
A lot of celebrities have come out and said they "sold their soul" for fame. I don't know how they actually did this and I suppose I don't want to know.
I think a lot of them obviously believe in Crowley's "Do as you will" philosophy.