"Paternal blessings are very Scriptural of course, and Patriarchy is itself the biblical root of priesthood.
Sounds Protestant to me."
What? If something is Scriptural it is thereby Protestant???!!!
Most of the OT is the story of how the blessing passed down from father to first-born son, or usually another son because most of the first-borns were corrupt. From Adam to Seth, Noah to Shem (Melchizedek), Melchizedek to Abraham, Abraham to Isaac, Isaac to Jacob and so on. Just as with Holy Orders, the form of the blessing was laying on of hands. All the above were sacrificing priests and that priesthood passed down from fathers to sons.
The Levitical priesthood only came into existence because of the guilt of the first-born in worshipping the golden calf (cf Num 3). One of the reasons Christ came was to restore the priesthood of Melchizedek which is why He is often called "first-born" in the NT, and why after his coming the Levitical priesthood was obsolete. (cf. all of Hebrews)
The close identification of fatherhood and priesthood is one of the fundamental reasons why women cannot be priests. It is precisely in the rejection of this where the Protestants have departed from Scripture, so one can hardly call this a Protestant idea!!!