Is it fair to use "protestant" as a synonym for "credobaptist"?
I've noticed several instances here (both recent and historic) of folks using using "protestant" as a synonym for "denominations which practice credobaptism"¹, i.e. credobaptists. This seems disingenuous, as Wikipedia lists several major protestant denominations (what looks to me like a significant portion of them, perhaps even a majority) that practice pædobaptism². In particular, IIUC, Lutherans (along with Catholics), who might be called "the original protestants", consider credobaptism a heresy.
In fact, AFAICT, the only "protestants" that practice CB are Baptists, the Churches of Christ, and possibly Pentacostals. Given that a majority of "protestants", at least counting the number of major denominations (and not members thereof) practice pædobaptism, it it fair to use "protestant" to refer to credobaptists? Or should we be discouraging this use, similar to how we discourage exclusion of LDSs and JWs from the SE?
(In fairness, population numbers do tell a different story, and in the U.S., Baptists are easily the majority of Protestants. Worldwide, however, the numbers aren't quite so skewed, and at best, equating "protestant" with "credobaptist" is probably offensive to at least a quarter of all protestants.)
(¹ a.k.a. believer's baptism; for this discussion, may be abbreviated CB or BB)
(² a.k.a. infant baptism; for this discussion, may be abbreviated PB or IB)