There was no gay rights movement prior to 1970s to speak of because so few were even openly gay. Stonewall happened in 1969 and in san fran there were clashes with cops thru the 1970s. In other words, you couldn't even go to a gay bar without being assaulted by cops. It's just like any other civil rights movement. Progress happens (extremely) gradually while waiting for those opposed to die off, so here we are.