I would like to start with some basic definitions, so we all have the same understanding.
Based on this generally-accepted definition, we can see that it isn't only Jews who are victimized by anti-Semitism. Hostility or prejudice against Arabs, many of whom are Muslims, is also anti-Semitism.
How many angels are there on the tip of the needle? This question is just as pointless as an attempt to find an answer to the question of how many NATO missiles there are in Europe