Many would be shocked at something like Jonestown where so many willing (and cooerced) drunk the poisoned flavoraid. Others are shocked that some would sacrifice their children to pagan gods.
JWs are nothing like that right? Oh, wait. Many willingly sacrifice their lives refusing a modern day medical treatment because of the extra-biblical opinion of taking blood into one's body. Many JW parents have essentially sacrificed their children for the same reason. The alternative? The loaded gun of threatening to take away your family, your friends, your whole social support structure, and possibly your livelihood.
Yeah, they not equally opressive, not at all...