Right-wing militias arming themselves against the 70,000 unaccompanied Latin American children expected to cross the border this year have praised an unlikely model for their xenophobia: the sign-stealing hippies of the Bolinas Border Patrol. “We have independent units from the Bolinas Border Patrol and the Central Valley Citizens militia joining forces with independent citizens militia units of Texas to defend our southern border in Texas, to protest Obama’s lawless open border policies and to rally…