Scientology's doctrines and practices are very similar to Jehovah's witnesses, but the harshness is greatly magnified, sort of like JW"S gone psychotic on methamphetamines. Examples:
Only Scientology has the way to truth and salvation, is "the most ethical group on the planet"
Leaders are spiritually superior. Obey and do not question. Your own thoughts are not to be trusted.
Leaving Scientology will ruin your life: failure, depression, insanity.
"Wogs" are the same as "worldy people". Spiritually lost and inferior. Scientology has a lot of jargon that outsiders can't understand.
No charity work. Working for Scientology is more important - it is the only thing that will save the planet.
This lifetime is unimportant - Scientologists will live happily when the planet is "cleared" (converted and saved)
Not really a church. Publishing company - of their stupid hard to read propaganda. Own seagoing ships and big time real estate.
Constant busy work for the organization at little or no pay. If you become sick or stressed, it is because you haven't followed the doctrine. Or possibly you need to banish some "body thetans". (kind of like demons)
Reading or listening to criticism of Scientology endangers your spirituality, as will associating with critics or apostates.
The S. organization is more important than family or friends. Informing is encouraged, punishment for not informing.
Any suspect behavior or rumors will lead to a "committee of evidence" Much like a judicial committee.
Being "disconnected" is like being disfellowshipped. Very serious shunning policy. Families are broken up. Unbelieving members are undercover for fear of losing family. Disbelief and doubt are not tolerated.
Patriarchal - men are in charge. Sexual abuse and violence toward women and children is covered up. Not allowed to go to police - the organization will take care of it. Scientology's public image is more important.
Love bombing of new recruits, wealthy and famous members.