I am curious to know how the atmosphere is in thelemite circles. Is there a special appeal for people with sociopathic tendencies?
No, quite the contrary. From what I've read, these people are not tolerated. The reason for this is simple; the Law is "Do What Thou Wilt," not "do what you want." The difference between the two sentences is central to Thelemic philosophy. Read
Duty, by Aleister Crowley. It does not encourage hedonism, quite the opposite.
http://lib.oto-usa.org/crowley/essays/duty.html
In a nutshell, as I said, the idea is not to do as you want, as what you want may not be your Will. Here's an example, I used to smoke a pack a day, and have since went down to about six cigarettes a day. The compulsion to smoke is
not my Will, as it is exactly that, a compulsion due to addiction. I
want to smoke, but cannot use Thelema to justify it. This can be expanded to other things, such as promiscuity that is carried out for the wrong reasons, drug abuse, staying in a loveless relationship because of obligation, etc. Carrying out one's Will entails the greatest discipline. All that you speak of, humility, receptiveness, etc., is inherent in Will, but not because of an old sun god looking over your shoulder and passing judgement over you, not because of fear.
Thelema, however, need not entail the occult. Although many Thelemites do, indeed, practice magick, this is not mandatory. In order to explain more fully the goals of the magician I would have to go into Thelemic philosophy, especially its pantheon and its relation to normal life. But it is better if I point you in the direction of the proper books that explain in better than I could, namely "Magick in Theory and Practice" and "Magick? Without Tears," both by Crowley. You might also be interested in issues of the Black Pearl, by the College of Thelema.
Oh, and I care little for the demise of American culture, not being American. Neither, for that matter, are you.
In occult doctrine I don't think I've ever come across any description of the Universal beyond general principles; more often than not it's referred to as a Mystery. Sometimes it's described as Love in an impersonal sense; or as a Universal Governor.
I agree with this. One of the problems is that God is simply what you make of it, hence too big a subject. In addition, one of the differences between Hermeticism and established religion is that the occultist seeks direct spiritual experience, hence most occult literature deals in the technology and means of attainment of that goal. The question of whether there is or isn't a God is thus rendered immaterial, something like "take care of the pence and the pounds will take care of themselves". Religion, on the other hand, is a set of precepts by which the adherant assures his salvation by indirect means.
Thelema, as far as I know, is a sort of bastard child of these two ideas, and is not confined solely to members of occult groups.