Care to parse this a little more? It doesn’t really accord with my understanding of contemporary theses regarding those two “populations” (where “Jew” is a relatively recent Roman Imperial-period designation for, vaguely, Yahwist peoples; and “Arab” even more recently came to describe “users of the liturgical abjab”, versus “the semi-discontinuous mobile desert tribes of the peninsular Near East”).
Certainly there was plenty of conflict (and strategic alliance) between Yahwist and their neighbors in pre- and mid-Kingdoms periods, but the bulk of that concerned Egyptian (New Kingdom, Intermediate/Kush-ite, and even Ptolemaic), Akkadian, Assyrian—all Semitic peoples, but distinctly not “Arabic”—as well as Persian/Achaemenid (and thus Indo-European) incursions. Moreover, the Yahwist city-states didn’t really emerge as a distinctly other-than-Canaanite (from which milieu they emerged) nation until roughly 2700-2500 years ago.
Even “2000 years” for “Christian vs Jew” seems to stretch a bit. The early medieval period seems (just as with Christian vs Muslim) to be the more defensible locating of the “origins” of these conflicts, writ large or semi-global; while “Jew vs Muslim” is more complicated, but not really tenable past 1300 years ago (and I would argue this latter “versus” was reframed enough by colonial divestment and Zionism to be a totally different discourse now than 150 years ago).