Earlier quoted context omitted.
arrogant, obnoxious, unhelpful, and entitled That's just Apple being Apple. It's also one of the reasons I don't use their products despite how nice they look. They always think they're right, and smugly so. "You're holding it wrong", etc. The attitude is endemic.
100%, and sadly I've had quite a few high-friction conversations with friends about iMessage. It's endemic and trickles down to some of their customers, too.
Did you allow a few days to pass and then review the conversation log? Sometimes we see a tone that we weren't aware of at the time.