“So these “Ultra-Orthodox” people are actually people from Muslim nations and not Israel?”
Correct (with some exceptions).
They are “Haredi” (who can be from wherever), but generally are Mizrahim (Jewish people expelled from “the East” -— typically muslim countries).
They are of the Sephardic (”Spanish” although not necessarily from Spain) tradition, compared to Ashkenazi (European, typically Germany/Poland/France).
I am Orthodox. I don’t, however, look like a reject from ZZ Top.
;-) But you do look a bit like a Star Wars character...