I just learned the other day that the Visigoths and most Germans who originally converted to Christianity converted as Arians which means they didn't believe in the holy trinity. They believed Jesus came from God but wasn't God.
Truthfully, this is what I've always believed about Christianity also but I never knew the term was Arian or that it was a fairly popular belief until the Catholic Church forced everyone to convert to the Holy Trinity belief system.
Everyone now also just gets lumped under the term arab if they speak Arabic, regardless of if they're the children of Ishmael at all whatever. A Lebanese person is 90% canaanite and in many cases can claim no descent from the patriarch Ishmael at all, nor any gulf tribes or bedouins, but they're still called Arabs