A reads like a douche, and if A tried that stuff A would probably be met with a counter that bags first need to be placed in the correct bin.

A makes the false assumption that they’re providing logic to the FA, and not grossly inaccurate personal opinion.

Good chance if A really pushed it, they’d be leaving the aircraft in silver bracelets.

In F, I find there’s plenty of room for everyone. If A gets such anxiety about backpacks in the overhead, then maybe it’s time to invoke A’s Air Carrier Access Act rights and just preboard for a mental condition.