"No no no. If you write something (other than libel or slander) and someone doesn't like it, tough."

From one perspective, I get it. It's my art.

From another perspective ... why wouldn't I incorporate critique, suggestions, etc. into my work to make it stronger where I'm currently weak? How is telling me that my Asian characters are a little stereotypical any worse for me or my writing than my editor telling me I overuse a repetitive sentence structure?  

If my goal is to become a better writer over time, I'd best be open to learning, no?