Traditional Christian ideas about marriage (i.e. stay-at-home mom, breadwinner husband, the wife willingly submitting to her husband's authority, the husband willingly sacrificing his own ambitions for the good of his family, etc.) are very much not in line with feminism. While these people won't call themselves "far right cultural activists" they do have to reject feminism in order to have a consistent worldview, and feminists would definitely call them something along the lines of far-right.
I do agree that far-right is a misnomer, "religious right" or "socially conservative" might be a better fit. My point is that "far-right cultural atavism" and "traditional wife" are the same thing from different perspectives.