I didn't see Facebook banning the Catholic church for its stance against contraception.
You should read the article.
Just because some members of a particular religious or social group do bad things, doesn't mean you should ban all members of that group. If it did, all of Facebook would have to shut down.
And while that might not be a bad thing - it's not the point in question here.
P.S. I fully agree with the removal.
One of the biggest problems I have with conspiracy theories is that nothing can be trusted because there's always something corrupt behind it all. I believe the United States' biggest challenge right now is the lack of trust of our most fundamental institutions like the CDC and the law. I think the lack of faith is due to people in trusted positions believing and promoting some of these crazy theories.
It seems like the reason for the ban is that the group
"repeatedly posting content that violated our policies"
I assume that if a religious group also repeatedly violated policies, it would meet the same fate. But the article doesn't clarify what policies were violated.
Edit...missing words.
Reuters reports that Official Q/QAnon "crossed the line" on bullying, harassment, hate speech and the sharing of potentially harmful misinformation.
The FBI last year issued a warning about "conspiracy theory-driven domestic extremists" and designated QAnon a potential domestic extremist threat.
Want to argue the world is flat? Fill your boots. Start to say there's a cabal of scientists with nefarious motives? You're heading toward the hate speech line. Plan breaking into prominent scientists homes to obtain evidence? The line's behind you.
For people who actually believe in conspiracy theories this is not at all true. And there are some religious people who might think this way, but I would guess it's a small minority.