Under the OP's circumstances - yes, I probably would have politely said something. And if it continued, I would have written to the airline afterwards, identifying the FA(s) by appearance (since I assume they would not provide their names or other information) so as to make sure other FAs on the flight don't get held responsible.

As for my own flights from hell, I've been pretty lucky, and I usually get decent or even great FAs. But when a flight is unpleasant, it's often due the FA.

As for other circumstances: There was what came to be called a "Summer from Hell" on UA back around 1999 or 2000 when pilot conducted a work-to-rule job action that caused all sorts of delays, cancellations and lost luggage. I learned to always do carry-ons after that.

Coincidentally, around the same time, I was in South Africa on a domestic flight to Joburg when our 30-seat jet started getting buffeted by hail and wind when preparing to land. The pilot tried to macho through the landing twice before having to pull up rather late in the process. Finally, the third time we made it. That was my own flight from h*ll.