My name is a totally bog standard American name and Starbucks or whoever cannot get it right if I just say it. I have internalized this now so I always say my name followed by spelling it (fortunately, it's very short). I think it's an important bit of context that even if your name is something like "Karen" or whatever, they will mishear it and misspell it as "Cathrine". It's not a unique microaggression imposed on people with names that are uncommon in the US.