Well, when I’m told this or that is offensive I smile and say “You’re welcome!”
You see, people who spend so much time being offended, to the point that they try to be offended, are likely to be addicted to it. Such individuals are likely to only be able to be their twisted version of happy if the feel miserable for some because (I will not dignify it with a “cause”), so I can go on to explain that I’m helping them to be happy.
If I get that far I usually find some other way to offend them.
I like to say; “You should thank me.”
Invariably this results in a loud; “THANK you? For WHAT?”
“For giving you something else to complain about.”
...walk away..