As a point of clarification, my point near the end of the video about the spectrum of belief on what baptism is must be read within the context of submission to the 39 Articles’ teaching:
XXV. Of the Sacraments.
Sacraments ordained of Christ be not only badges or tokens of Christian men’s profession, but rather they be certain sure witnesses, and effectual signs of grace, and God’s good will towards us, by the which he doth work invisibly in us, and doth not only quicken, but also strengthen and confirm our Faith in him.
There are two Sacraments ordained of Christ our Lord in the Gospel, that is to say, Baptism, and the Supper of the Lord.
Those five commonly called Sacraments, that is to say, Confirmation, Penance, Orders, Matrimony, and Extreme Unction, are not to be counted for Sacraments of the Gospel, being such as have grown partly of the corrupt following of the Apostles, partly are states of life allowed in the Scriptures, but yet have not like nature of Sacraments with Baptism, and the Lord’s Supper, for that they have not any visible sign or ceremony ordained of God.
The Sacraments were not ordained of Christ to be gazed upon, or to be carried about, but that we should duly use them. And in such only as worthily receive the same, they have a wholesome effect or operation: but they that receive them unworthily, purchase to themselves damnation, as Saint Paul saith.
XXVII. Of Baptism.
Baptism is not only a sign of profession, and mark of difference, whereby Christian men are discerned from others that be not christened, but it is also a sign of Regeneration or New-Birth, whereby, as by an instrument, they that receive Baptism rightly are grafted into the Church; the promises of the forgiveness of sin, and of our adoption to be the sons of God by the Holy Ghost, are visibly signed and sealed, Faith is confirmed, and Grace increased by virtue of prayer unto God.
The Baptism of young Children is in any wise to be retained in the Church, as most agreeable with the institution of Christ.