Has homosexuality been redefined?

I thought huddling together for warmth in cold weather was a survival technique: a method for staying alive, rather than counting as a sex act.

And two males bringing up an orphaned child seems like a jolly nice thing to do for the child and the community. If an orphanage is staffed by one sex, does that make the whole place a massive L/G orgy even if nobody is having sex with anyone else?