Set of ideas around the importance of widely undervalued factors, mainly looks and genetics in general, which heavily influence your lifetime outcomes across all domains. Heavily focused on dating and everything around female attraction towards men.
An anti-feminist, pro-male-collective-interests perspective is often part of the BP package. Although, to some degree, that is simply because truth-seeking itself will always be inherently at odds with ideologically motivated distortions of reality rooted in female self-interest.
And then there is this site, where the BP itself often takes the form of a cult-y way of life, a one note explanation for everything, an ideological distortion in a different direction than the feminist one.