I feel compelled to tell you this:
I am not offended.
I am contemptuous.
Contemptuous of the fact that you choose to dismiss the very real harm these attitudes propagate on very real people. Contemptuous that you think your entertainment is so much more important than the daily discrimination people who look like me face. Contemptuous of the fact that you think your intent to mean no disrespect actually matters in the face of the hurt you cause. Contemptuous that you insist on defending what we, members of the affected marginalized groups, have said, time and again, is a really harmful idea.
"Offended" isn't the word. Try "angry". Try "baffled". Try "unsurprised at racism". (And able-ism, hey ho!)
But most of all, contemptuous.