I think sumbunall libertarians get uncomfortable when the discussion veers aways from "government vs. individuals" and starts to deal with group-individual and person-to-person interactions. Possibly because those sorts of things are generally discussed more under anarchist theory, not libertarian economics. And of course no one wants to be labeled an "anarchist"!

Why are we not angrier?
I am restraining myself from mil spec industrial grade snark . . .
I can recall exactly one woman I've ever met who self-identified as a libertarian, and she was pretty non-standard.