What is the test for determining whether a group of El Salvadoran men who have not served in the military constitute a "particular social group"?

This analysis is consistent with our case law on similar issues. In Sanchez-Trujillo v. INS, we held that a purported social group of "young, working class males who have not served in the military of El Salvador" was too "all-encompassing [a] grouping" to constitute "that type of cohesive, homogeneous group to which we believe the term `particular social group' was intended to apply." 801 F.2d 1571, 1572, 1577 (9th Cir.1986). "Individuals falling within the parameters of this sweeping demographic division naturally manifest a plethora of different lifestyles, varying interests, diverse cultures, and contrary political leanings." Id. at 1577.