no difference

i'm sure this has been brought up before, but does choosing to be gay or straight even matter? (personally, i think for most people it isn't a choice; for a small minority, however, i think it is) let's say it's always a choice and they want to get married. ...so what? as long as they want to get married for the "right reason" i don't have a problem with it. too many straight people get married for all sorts of dumbshit reasons or they get divorced because they simply don't care to work on that relationship. would gay people do the same? probably. but why deny them the the opportunity to legally express their love and commitment to each other?