What else is new? We prefer to follow the interpretatkion believed by the Church all along, when the Church put together the canon.
There is evidence of baptizing whole families and second century grave markers indicate infants who died with words "servent of the Lord."
John 3:5...Jesus is talking about physical birth and spiritual birth.
The Church always treated that as water baptism and sacramental seal of the HS (chrismation) as one Baptism.
Another very reasonable understanding is Jesus was using the phrase "born of water" as a symbol for the word of God
Oh, please...
If you notice in Mark 16:16 it is not the lack of baptism that condemns. Mark 16:16 He who believes and is baptized will be saved
Being baptized is necesssry part of the salvational formula. If you are baptized and you don't believe, you cannot be saved through baptism alone. But infants cannot believe; they can be patized however.
Baptized children are washed of their sin. They are sinless until the age of reason. If they do not believe after the age of reason, their baptism is no longer sufficient.
Then why do you baptize non believers?
There is evidence of baptizing whole families and second century grave markers indicate infants who died with words "servent of the Lord."
Error creeps in quickly. IIRC, there were others who tried to wait till just before they died to be baptized because they were afraid if they sinned afterward they would be condemned.