re: #2 Nyet
Um. How can Christianity, Buddhism, Islam, Hinduism, Judaism, Buddhism?.. It’s not like their traditional stories are any more believable. In fact, a galactic overlord stashing thetans in volcanoes sounds downright realistic compared to the traditional religious myths.
All religion is crazy, but the Scientologists are really out there. It takes a special kind of gullible to believe there was an alien world just like Earth, including cars and clothes just like ours, and that they had intergalactic DC-8s. Of course they’re not told about any of this until they’re completely financially and emotionally invested in the cult.
Hubbard was completely bonkers, and was able to draw a huge number of people into his ridiculous delusions.