Arabs Are Semites
People who hate Jews simply because they’re Jews are obviously anti-semites.
But people who hate Arabs are also anti-semites. Specifically, “semite” is defined by Webster’s dictionary as:
A member of a group of people originally of southwestern Asia that includes Jews and Arabs
a : a member of any of a number of peoples of ancient southwestern Asia including the Akkadians, Phoenicians, Hebrews, and Arabs
b : a descendant of these peoples
(Southwestern Asia is more or less another way of saying “Middle East“, and basically includes Saudi Arabia, Yemen, Oman, Qatar, Bahrain, Kuwait, Israel, Lebanon, Jordan, Syria, Iraq, Iran, Afghanistan, Pakistan and surrounding areas.)
So anyone who hates all Arabs is literally an anti-semite.