Baptism happens only once in your life. If you've had a legitimate baptism in another Christian denomination and then convert to Catholic, you CANNOT be rebaptized. To baptize someone another time would be meaningless since the first baptism permanently removes original sin.
You can, however, be CONFIRMED in the Catholic Church. This is a separate sacrament and does not involve the pouring of the water. It does NOT remove original sin, but ratherm it fills the person with the gifts of the Holy Spirit.
And this is based on what??? Aesop???
Where in the Bible is original sin mentioned?
Chapter and verse please.
And where does Scripture teach that baptism removes the stain of original sin?
And really, unless baptism removes the sin nature, it’s pointless because the baptized person WILL sin again and then it’s worthless for salvation.