"White, Anglo" is a term used to broadly describe Caucasians who speak English, in order to differentiate them from caucasians of Latino heritage. But Anglo-Saxon is too narrow to even encapsulate the hsitoric English-speakers of the world . . . I dare say, were one to go into a bar in Dublin or Edinborough or Aberystwyth and refer to a patron as an "Anglo-Saxo," one'd likely find a celtic Irish, celtic Scottish, or Welsh fist amidst your teeth.
As I have pointed out before, even the term "Caucasian" has doubtful origins, so I don't use it.
And, as I have pointed out before, none of us gets to be the final authority on anything.
But it was very white of you to point that out . . . ;)