CT is a beautiful dungeon, but on DF is a total fail, period.
The nowadays actual community will never makes it work properly for months (or ever?).
There will always be a jerk, and afker, douches, kick abusers, noone listening others. Nor giving a crap to listen and learn. Much less a 90 elitist brat
Oh wait, how to forget the JP community (if you tought it was better, let's be fair): don't join JP on DF.
Be perfect , don't fail anything you're not allowed to die, stay low, if the raid will complete CT and you're still there, call yourself lucky.
By the time someone discover you're a gaijin infiltrated (the E underline on your account usually helps , pathetic when JP players have that E maybe just because they bough a boxed CE found imported from europe , or just playing outside japan and bough the game outside creating a "gaijin account", they are japanese but tagged as gaijin, i'm a good example lol

), they will kick-abuse you asap or at 7th boss/ before last chest.
Keep your head low and pray noone check who you are.
So far ye, this community is pure junk worldwide lol
On JP side, JP players are willing to listen, they read the explanation and apply it, the exact opposite of what clearly the OP experienced with E community.
I'm sorry to tell it, but Yoshi should truly shutdown canadian servers, make this game JAPAN only, with ip control to allow japanese players-only, things will work better.
Devs are clearly creating content for japanese attitude (respect, be friendly, help others, listen and learn, lower your head by the time you illude yourself to be an elite player...etc...)
Something like 24 random players worldwide will never work out properly with a sane minded funny run. Once, maybe, if lucky.
