Even if being gay was a choice.so what? People choose to be assholes and they can get married? We also accept these assholes into our society with open arms, they are usually holding a bible. Just Sayin!
Heres an idea: have people write their favorite song lyric in a guest book with name of song and artist if known and then sign their name. Always has been my fave Elton John song! ( Ellie Goulding song too)