Illustration by Luis G. Rendon/The Daily BeastOn a Tuesday afternoon, police encircled the Elmhurst, Queens public library in two layers of crowd-control barricades. Next to arrive were the volunteers, carrying rainbow umbrellas and brightly colored posters. “Libraries are for everyone,” read one sign.Then, minutes before a family-oriented story time was set to begin inside the library, the right arrived. Bearing “Don’t Tread On Me” flags and “Blue Lives Matter” t-shirts, the dozen or so demonst