Please note: I come in peace! 
I like to think that I am aware of, and empathetic with social issues. I was born female and identify with that, and I am completely for gender and sex equality.
I have read into it a bit, and I really do not understand why the term Karen is seen as offensive? While I agree that it was completely wrong for that woman to be called out on twitter for apparently flipping off and using racial slurs, personally I have found the Karen meme amusing.
I thought that being a "Karen" is being a privileged person (male or female) who complains unreasonably in a customer service kind of situation. Unreasonably being the key word here! And honestly I don't understand who that is offensive to?
I really am not trying to start some kind of argument here, I would just like for someone who finds the word "Karen" offensive to explain it to me so that I can understand from someone else's perspective