You say that, "the awaited Messiah and the awaited "the Prophet" were clearly TWO DIFFERENT PERSONS, who are strangers to each others, and are not from the same bloodline."
I find this interesting because in the scripture you quoted, something doesn't make sense (John 1:19-21).
If the Prophet was to be an Ishmaelite, or a non-Israelite, then why in the world did these Jews ask a fellow Israelite, John, if he were that Prophet to come? Why did they ask John, an Israelite, if he were that Prophet if the Prophet was to be a non-Israelite, a Gentile?