I am quite well aware that the denominations classified as Protestant include infant-baptizers of both kinds, OSAS or not.
My kind of belief was present from the beginning of churches of the kind defined in the New Testament, none of which water baptized infants, only those mature enough to intelligently profess not only a belief recognizing the Jesus of the Bible, but also that there commitment to immersion was the rite of induction into the local assembly as a certified discipling learner of the culture and doctrine espoused by the Apostles.
This is not a group coming after the formation of Romanistic theology back in 323 AD, and splitting off the Roman or Greek Catholic churches circa 1550 protesting the unbiblical excesses they were subjected to by the RCC.
The grouping I belong to came way prior to the RCC or the Protesters or the Reformers, and that is why I said "NEITHER!"
And what "grouping" would that be? Does "it" have a name?