OK... Let me begin by stating that I don't think that Fluxus has anything whatsoever to do directly with Judaism.
But... As someone who was born Jewish, became Israeli, and believes in no religion at all; and yet still identifies himself as "Jewish", I can see some interesting parallels between Fluxus and Judaism.
Over the course of the past few weeks a lively discussion about Fluxus has been taking place on Facebook. Recently, Cecil Touchon posted this interesting commentary to that discussion:
Fluxus as a group, by keeping it open and alive is a new strategy that previous art groups have not been able to pull off in the past but - due to most of us understanding how all that works, we are circumventing that burial. All of this discussion is really about all of us who were not originally associate with fluxus back in the 60's and 70's staking our claim to the "type"or genre that could be called fluxus. I was born in '56. I have been doing fluxus-like stuff at least since '75. I didn't know you had to join a group - I would have thought that rather stupid at the time. I lived in Saint Louis not NYC but a number of us were engaged in the same sort of work. The same was going on world wide. Fluxus is really just a basket of many trends that were current then as they are now. Now we use the term Fluxus as a banner so that we can all find each other who have been working in relative isolation but who share a common 'something' what we all identify as dada/fluxus/avant/pop/retro/whatever. If fluxus came up with any new ideas that were not already in the 'air' (which is questionable) then we have to ask, why should those new techniques, traditions, etc be ignored. No, when we all see new ideas that need to be incorporated into contemporary practice, we do it. If it falls under the name 'fluxus' then you might as well call it fluxus. The root ideas of fluxus encourage such treatment and we, in my opinion, are being generous to fluxus by retaining the name and honoring the hard work already done by all those known and unknown. We are at the point where constant newness is a little bit stupid as a strategy. With the advent of the internet, we know too much to think we are doing something no body did before. Previous generations could maintain such arrogance by being ignorant of those things happening at a distance.