It must have been in the 1970s that I read an article about a live rattlesnake being left in the mailbox of a critic of Scientology. The first time that I became aware of that cult’s fanatical hostility against its critics and its defectors.
When the fate of the entire world is in the balance, no defense of 'the one true tech for man's salvation' is beyond the pale. That's what they actually believe.
It's why they give up their lives, their freedoms, their fortunes, their families, and their own self determination and common sense.