"that people make they encounter"
OP typo.
Of all religions of similar or larger size scientology is probably one of the more harmless ones. Sure, they swindle people out of their money, but they don't seem prone to violence unlike some other, larger cults. Also I'm sure it's a really useful organization for rich people since donations aren't taxed, and they can use the church as a bank of sorts.
Sure, their believes are silly, but let's say scientology survives a few hundred years (maybe less). Once the book is old enough all the silly bits will be reinterpreted as 'imagery, meant to be interpreted' and questioning the actual content of the book will be met with ridicule. Similar to for example the bible today.
Still, if being religious helps relieve stress brought on by insecurities I don't really mind. No reason to be terribly unhappy if it can be avoided that easily.