The Persians had no special contempt for the Jews; but, of course, they despised more or less all the subject races. Esther, with her Aryan name, may have passed for a native Persian.
Related Commentaries of Esther 2:10
Esther 2:10
10 Esther had not shewed her people nor her kindred: for Mordecai had charged her that she should not shew it.