Answer:
Latin culture and language displaced by the Greek in the Byzantine Empire because of the people who lived in the region spoke Greek rather than Latin. Byzantine Empire established on the grounds of the Greek culture. Ancient Roman influenced by the Greek and considered them to be highly sophisticated culture and art. Greek became the language of Roman aristocrats. To the Byzantine People, Greek was chosen in place of Latin because of its high status in cultural domination in the region.
Anti-semitism refers the the ideology against the Jewish race. It describes discrimination and hostility against this group. According to Britannica, the term was coined by Wihelm Marr to coordinate the anti-Jewish sentiment campaigns during the late 1800s.
I assume since his worship involves necromancy which is look badly upon by everyone else