I wouldn't say a debate over the internet is the same as real life. The internet is defined by semantics and relative anonymity. In real life I see the GLBT getting along far more often than not.
True that, because first of all once you step out the door you lose half the people who only exist on the internet, moreover when you get into the 'community' or start working with organizations you eliminate a lot more - and what you are left with are people who tend to be highly functioning, extremely social persons who are working towards an end and tend not to get bogged down in minutia and semantics. Moreover, because they are functioning and social they recognize that anyone and everyone who can and will help you get to that end are allies, not merely targets for a meaningless debate.