A gay postmark to celebrate Pride drew outrage in 1989.

The Stonewall 20th Anniversary Postmark. (Photo: Gay and Lesbian History on Stamps Club)

Public outrage over LGBTQ rights is nothing new. On every level of government, issues including marriage equality, the removal of sodomy laws, and fair public accomodations — all touchstones in the movement for equality — have been fought against by conservatives…