Did you miss the part where you walked in on a meeting and they were all wearing the exact same thing as the KKK outfit but black?
You mean that haunted house with the fog, lightning, rotten food, dusty furniture, and stuff?
Just because they play up a motif it doesn't mean the motif makes sense.
I don't just accept they are the KKK because they wear brightly colored blue robes that conceal their faces. There is an actual reason why the KKK wear the clothes that they do AND the KKK do not accept doctrines that coincide with regular society.
By all means their beliefs and those of society are one and the same. They are just as someone said an "elite society" that takes things a bit too seriously.
In fact... they are basically a Historical Society that should be filled with old people and old money...
But that is Bioshock Infinite in a nutshell anyway... It would be fine if they wouldn't draw attention to their own nonsense.
"That thing keeps me in here!"
Me: "So... that thing which is TOO BIG for the building you are in... is here to keep you inside that building... is only activated if YOU try to leave as opposed to an oncoming attack or invasion... AND literally is trying to kill you"
"Yes, I know it doesn't make sense but isn't it cool?"
Me: "Ugh! what next... Firefighters that actually burn buildings instead of putting them out?"
"We are the fire fighters! We are here to burn you alive!"
Me: "I was kidding!"
Note: I am pretty sure the Firefighters are a joke and they aren't ACTUALLY fire fighters... but... given the source I wouldn't be surprised.
What is funny is that... I've seen the Crow Society before... In an Ace Ventura Cartoon... Where a society of people who worship the turkey were created because they are based on Benjamin Franklin. Except they made more sense.