There is no such thing as a "semite." It's an archaic racial category that 19th century German race science used since "anti-semite" sounds more scientific than "Jew hater." Consequently, that's why it's applied to Jews rather than a larger pseudoscientific racial group.

(More broadly, "they're semites too" is the "Elon Musk is African American" of I/P discourse. You can recognize extraordinary human tragedy without re-using race science.)