All right so opinions on if I'm secretly racist or not aside..let's have a quick chat about comedic insults.
You got hit with a classic "emphasizing their patronizing word choice by making it a whole sentence" and then you...used it right back? You have effectively just said "no, YOU'RE the butthead!!!" like a child in their first argument who hasn't developed wit. But this is worse because there was no rush to reply. You had time to craft a clever jab and opted to repeat the joke instead. What does that say about you?
Not that it was all that clever to begin with but you have to realize that this just doesn't hit nearly as hard when you're the second person to say it. You don't look cool, you look like the cheap copy.
I'll catch you in another thread, hombre