That's not how the burden of proof works. You made the claim that it was racist. You have the burden to prove that it is racist. I have no burden to prove it isn't.
https://en.wikipedia.org/wiki/Burden_of_proof_(philosophy)
You can't just shift the burden of proof onto me, it is a fallacy:
https://www.logicallyfallacious.com/logicalfallacies/Shifting-of-the-Burden-of-Proof
Jack: I have tiny, invisible unicorns living in my anus.
Nick: How do you figure?
Jack: Can you prove that I don't?
Nick: No.
Jack: Then I do.
How is it prejudiced? All you've done is traded the word you're using.