Ah, you do want me to explain - ok then. Did think you were smarter than that, but one should never assume.
The word Muslim is used to describe followers of a particularly abhorrent religion known as Islam. Much like the word Christian, it is used to describe someone who has made particularly poor life choices that are not compatible with a civilised world and therefore can (and should) be criticised for having done so.
Compare and contrast with the word Arab, for example. This is used to describe people whose familial lineage is based in the Arabian peninsular and neighbouring territories. This is an accident of birth and should not be criticised as this is not a choice that has been made.
Such a split in linguistic terms cannot be made with your example. The term Jew has been used for centuries to describe both those who follow Judaism (ridiculous choice worthy of criticism) and those with genetic and cultural lineage akin to the term Arab.
The vast majority of anti-Semitism has nothing to do with religion (at least, not on the part of the victims) and everything to do with prejudice and racism.
However, there has been a concerted effort over the past decade or so to conflate racism (people disliking those because of their skin colour/nationality) with Islamophobia. A smart move that I would have thought beyond the planning skills of most adherents to such religions. The effect is that it becomes increasingly difficult to (rightly) criticise misogynistic and homophobic, stone age belief systems without otherwise reasonable and intelligent people pointing and shouting "racist" in an attempt to shut down valid criticism of religion.