Casablanca sucks. Also, most “refined” cinema is a fart-sniffing competition of one-upsmanship in how much a person can endure meandering nonsense disguised as commentary.
I mean, it’s a hot take, I’ll give you that. I can’t agree with it, though. Every line of dialogue in that film moves plot. It’s really well edited and far ahead of its time. Modern cinema owes a lot to the lessons taught by Casablanca.