I'd say that all ignorers of their subconscious are equally stupid in their disregard for reality. Now what?

Religion is a part of the human psyche, ask Jung, ignore it at your own peril. And, no, building a religion around atrociously bad pulp sci-fi is a much, much worse approach than trying to line yourself up with an older tradition. In the case of Scientology you get a glimpse at Hubbart's neuroses, when reading the Edda you get a glimpse of what generations and generations of Norse shamans and skalds had successfully brought from the (collective/individual) shadow into the light.

You're looking at the whole topic from an almost comically naive perspective.

As to "choose Asatru or modern Satanism or Discordianism or Stoicism or something eclectic or whatnot": There's no wrong religion. There's only religions which might be right or wrong for you (with the caveat that Pastafarianism is a lame joke without any depth). As to "but the original tradition has been lost": So what. Traditions change and are, in any case, not the praying to the ashes but the passing of the fire. Stoke some embers. Listen to Heilung or something like Sunn O))) (headphones! (both)). See if you still have enough chaos in you to give birth to a dancing star, or go on and continue worshipping Greyface.