My presence in the Anglican Church comes after over 40 years in Churches of Christ where there was a fairly non-negotiable view about Baptism - it had to be by immersion, but unlike the Greek Orthodox it also was only available to those old enough to choose it for themselves (generally described as adults, but I was 10 when I was baptised by immersion).
While I think the Anglican church and those others like it would maintain that infant baptism is a complete and valid baptism, it also acknowledges that it should be followed up with Confirmation when the infants are old enough to own the faith that their parents have promised to bring them up in.
Some years ago I came to the view that God was less interested in the mode of Baptism than in what was happening in the hearts of the people called into the Way. Thus my transition into the Anglican Church was not as frought with dissonance as might have been expected.
Having lived on both sides of the Baptismal divide I would like to respectfully suggest to Dannii that the kind of “rot” described can be found on both sides, although I think rather rarely. For the most part, those charged with the responsibility of baptising do so fully aware of the mysteries they are part of as people go through a ritual by which they die to self and rise to new life in Christ.