[annalex]

No, that is your conclusion. You say that “all” means literal “all”. I simply demonstrate its absurdity.

There is no debate that Christ is the source of all righteousness, of Mary, or anyone else, in whatever degree they have it.

[suzyjaruki]

My objection to wandering away from what a text says by reading between the lines and inserting things that are not there does not make me a literalist. However, IMO the "all" in Romans means all men (born in sin) and that cannot include Jesus Christ who is God-Man (born of the Holy Spirit without sin).

Why was Jesus born of the Holy Spirit without sin? Why was it necessary for Him to be unique?