The word has never, in its history, been used for anything other than racism against Jews. There are Semitic languages, not people.

> Due to the root word Semite, the term is prone to being invoked as a misnomer by those who incorrectly assert (in an etymological fallacy) that it refers to racist hatred directed at "Semitic people" in spite of the fact that this grouping is an obsolete historical race concept. Likewise, such usage is erroneous; the compound word antisemitismus was first used in print in Germany in 1879 as a "scientific-sounding term" for Judenhass (lit. 'Jew-hatred'), and it has since been used to refer to anti-Jewish sentiment alone

The Romani people for example (derogatorily called "gypsies". The term "gyp"—to scam—derives from stereotypes of Romani people) faced some of the most gruesome programs in history before facing the Romani Genocide in WW2. Yet we rarely talk about antiziganism the way we talk about antisemitism and people still casually throw around terms like "gyp"

> Not to mention there are more semitic people than Jews.

Accurate, but irrelevant. The meaning of anti-semitic has always specifically been hatred of Jews.