Is being hearing an accomplishment that one should be proud of? How weird!
* The standard old-school response is to either stare at the other person with a "what's-wrong-with-you" expression.
* Or turn the question into another question and ask, "Why?"
* If it's a hearing person asking the question, you could ask, "Are you proud of yourself for being hearing?"
* Or, the simple response, "What a bizarre notion, ha, ha!"
* Eye roll.
* "I'm proud of my daughter for who she is, not what she is."
Bottom line is, you don't owe anyone a response to stupid statements.