BS BULLETIN: Gay writer James Kirchick told Bill Maher he sees a growing divide between gay and lesbian Americans and the broader “queer” political movement. Kirchick argues that “queer trans extremism” is creating a backlash that is now hurting support for same-sex marriage. There really has been a shift: Gallup finds support for same-sex marriage has fallen from a 71% peak to 65%, driven largely by a steep decline among Republicans. For decade…