Walking back from today’s July 4th parade in Takoma Park, I overheard two women — both wearing an “I Care Do U” sticker — talking about the diversity seen in this progressive enclave from the participants in this most all-American of holidays. There’s your medical marijuana advocates, Christian evangelicals, 9/11 truthers, Republican and Democratic candidates for county executive, the First Panamanian Marching Band of Maryland, Doggie Washerette, the MAGA (Mobsters are Governing America) PAC, all the public works vehicles (love the lawn mower guy spinning around in circles), Boy and Girl Scouts, the Intergalactic Female Motorcycle Federation, the Silver Spring Yacht Club, and the Takoma Park Lesbians and Gays all mixed together. And don’t forget about the Reel Mower Precision Drill Team. There’s a lot of chatter in the right wing entertainment universe these days about political correctness shutting down free speech.  But today’s experience in Takoma Park shows that this narrative about the progressives not hearing from different voices isn’t necessarily true.  Everyone had their say, everyone was treated with respect (if some were …