Protestant priestesses.
Of one Accord?
Technically, they’re correct. Protestants do have Priests and Priestesses, insomuch that every believer is, in fact, a Priest and a King in the sight of God.
1Pe_2:9 But ye are a chosen generation, a royal priesthood, an holy nation, a peculiar people; that ye should shew forth the praises of him who hath called you out of darkness into his marvellous light:
Rev_1:6 And hath made us kings and priests unto God and his Father; to him be glory and dominion for ever and ever. Amen.
Of course, this isn’t actually what they had in mind when they said it though.