I think antisemitism became a topic last time around because it highlights some of the issues that arise when you try to export 'whiteness' as a concept outside of the US. Many Jews have white skin and are generally highly-educated, with higher-than-average earnings and good jobs - factors that seem to be associated with 'whiteness' - but they remain one of the most persecuted groups on the planet. What was perhaps the worst event in human history was inflicted on a broadly-successful group of white people (regardless of whether they were religious practitioners or not), which suggests 'whiteness' analysis looks pretty ropey outside of a US context.
Not strictly speaking, no, but prejudice against people from Muslim-majority countries or cultures is very clearly a thing (which also speaks to how closely Islam is tied to cultural identity and systems of government). 'Islamophobia' might not be a perfect word given how it's entirely legitimate to be afraid of the tenets of just about any religion (especially Islam) but we all know what the word really means well enough that it's perfectly functional.Muslim isn't a race.