Ah, I see. In this context, "the Longhouse" appears to be a term used by some right-wing critics to describe a societal shift towards what they perceive as a matriarchal structure, where values traditionally associated with femininity, such as care, concern, and feminine social strategies, are given prominence. This term seems to be used metaphorically to represent a perceived shift in power dynamics and cultural norms.

When combined with "Cluster B," which typically refers to a group of personality disorders characterized by dramatic, emotional, or erratic behavior, the phrase "Cluster B Longhouse psychopathology" may be used to describe a perceived convergence of traits associated with these personality disorders within the context of what is described as the "Longhouse" societal structure.

So, in the statement you provided, the speaker seems to be suggesting that the individual being referred to exhibits behaviors reminiscent of those associated with Cluster B personality disorders within the context of a societal shift towards what some critics call "the Longhouse."

https://www.city-journal.org/article/the-cluster-b-society