Do you mean no original sin, or just one who never sinned ? I did not know there was any save Jesus.
Oh my, you do too know of another - Our Mother Mary, who was immaculately conceived, no original sin but the full presence of the Holy Spirit, for the LORD was / is with her.
We are all taught this by the Infallible Teaching of our Holy Mother, the Church, who does not tell us anything but what is truth, and is without error in what she teaches in matters of Faith and Morals.
Everything you are saying here is an attempt to say that you understand differently than the Church, and you are correct. The Catholics here are trying to give you insight into the fact that Catholic teaching is not foreign to the reading of Scripture, but you deny it as a legitimate reading, because it is not your reading.
You cannot understand heavenly things such as the working of Grace that happens effectively to all the Baptized, adults and babies; you do not comprehend the infusion in the Soul of Grace, the infusion within the Soul of the Theological Virtues, and the necessity of Co-operation in Sanctification, wherein the Grace and Virtues are become Active. So, unable to comprehend, you deny the Holy Spirit rather than being like Nicodemus and seeking to learn from Christ in his Apostolic Body, and ask “tell me how this is true so I will know.” You think that Cornelius was “born again of the Spirit” because he spoke in tongues, but you do not know that he was “not saved” when the Spirit came upon him. The Spirit came upon him to be a message to Peter to do the Baptizing of Cornelius and his household, it was no sign nor salvation for Cornelius. That happened when Peter baptized them.
“He who believes and is baptized shall be saved, but he who disbelieves is condemned”.
In 21st century English for the slow of mind, that is translated: “My disciples, you are going to preach that I am the Christ, and you will tell people that you can give them citizenship in my Kingdom, along with my Spirit which you will also give them to change them into righteous people (justified people). Some of them will take you and your successors at your word, meaning they would also have believed me in person, so you are me “in persona”. When they believe you, they will ask you to Baptize them. Do it, Baptize them, that is where you are giving them Citizenship, salvation, the Holy Spirit. From now on, that person who believed you and whom you baptized is to be regarded by you as “Saved”. Then you must teach them to use the infused Grace and Virtues, and thus be perfect just like their Father in Heaven. Of course, if anyone does not believe you or your successors, it goes “without saying needed” that they will not ask you to Baptize them, and it goes “without saying needed” that you will not then baptize them, so you are to regard those who did not believe you or your apostolic successors as “not saved”, as still IN the world and OF THE WORLD, meaning regard that they are apart from the Grace I have given you to give to the Church of the Faithful.”
John Martin