I meant "adultery" in the sense of sex that is deemed objectional ( I was in a rush when I wrote that one-word reply).  But more technically, I would not call homosexual acts "sex" at all, and so my argument would be better stated that granting communion to those who commit unrepentant adultery opens the door to communion to anyone who engages in any unrepentant sin, including homosexual acts which, homosexualists would argue, are "less offensive" since there are no direct words from Christ about them as there are adultery.  But I've no doubt that the drivers of this are the homosexuals in the Vatican.