How on earth was it "disparaging" for him to think that someone who looks middle eastern or asiatic might be from the middle east or asia? And fwiw, you can't really be unintentionaly racist. Racism is a pretty specific thing.
No, I don't need an entry level to racism. I know exactly what it is, and isn't. And my "benchmark" on racism isn't weird.
Oxford Dictionary.
No one has said anything close to one race being superior to another, and I dont think anyone has even suggested anything close to prejudice, discrimination or antagonism towards someone of a different race.
Virtue signal on, though.