As I told EV, where do you think they got that symbol?
I can tell you for a fact: they got it from the cloth triangles sewn to the camp uniforms of gays who had been sent to camps only because they were gay.
It's not a coincidence, it is a historical fact. Ask the gay group leadership, they'll tell you the origin.
Hey, I just googled it myself. Tragic as it may be, it appears the pink triangle flag was chosen by the homosexual community as a symbol of "gay pride." Take it up with them.