The Caucasian race was historically regarded as a biological taxon which, depending on which of the historical race classifications was being used, usually included ancient and modern populations from all or parts of Europe, Western Asia, Central Asia, South Asia, North Africa, and the Horn of Africa.
Many would be, yes. But this is all basically pseudoscience.
If Jews are white, so are Arabs, as they’re all Semitic.
Unless you’re only referring to their religion, in which case they could be of any ethnicity.
Many would be, yes. But this is all basically pseudoscience.