Just for clarification, homosexuality is not a behavior any more than heterosexuality is. It's an attraction. A celibate homosexual is still a homosexual.
Respectfully, such a belief is founded purely on myth - the myth that we are "oriented" to one or the other gender genetically - that we are "made" that way and so are "attracted" to one gender or the other. Such a notion is a myth. It's completely untrue.
Women were made from, and for men. And men were made for relationships with women. We are admonished about the abhorency of homosexual behavior, that such behavior is unnatural, indecent, and depraved. How one comes to want to engage in such behavior is not relevant to the nature of that behavior itself. The behavior is wrong.
And if God declares [homosexual] behavior is wrong, it casts a pall on God's nature to suggest He created some men attracted to women and some men attracted to men - only to condemn the latter for such behaviors as He [supposedly] gave them in the first place.
If you have sex with someone of your gender, that's homosexual behavior. If you have sex with someone opposite your gender, that's heterosexual behavior.
"Attraction" (or lust, or covetousness) does not determine whether one is "hetero" or "homo" sexual - behavior does.
No man or woman is defined by their lusts, their weaknesses, their sins, their behaviors. Such behaviors spring from one's identity - whether in Adam or in Christ.
We all start with identities in Adam (the "lost"). Christians (the "saved") are given new identities in Christ. Our behaviors spring from our identities; our behaviors however do not define our identities.
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It is entirely possible to engage in sexual behavior without any form of emotional attachment whatsoever. Indeed, emotional attractions/attachments are
learned attractions, regardless what the homosexual lobby says. No man, no woman who considers themself to be "homosexual" was born that way, was made to be that way, or has genes that demand they be that way. Homosexual attractions are learned attractions. Period.
There are men who engage in homosexual behavior who have no emotional desire whatsoever for the other person - kissing, hugging, intimate touching, caressing, etc. are the furthest thing from their mind - men who, after engaging in the homosexual act are totally abhorred at what they've done, want to be away from the other person as fast as they possibly can. Many prostitutes behave similarly, able to engage in sex with no emotional attachment whatsoever.
'Homo' and 'hetero' are prefixes for types of sexual behavior and make no distinction regarding "attraction" to either sex.
We have no name for men (or women) who are "attracted" to both genders. "Heteros" call them "homos" while "homos" call them "heteros." (NOTE: the use of "hetero" and "homo" is not intended in the pejorative sense, but purely descriptive and to this context alone. No offense is intended with the use of either quoted term). Neither group views the other with much respect or favor - largely because such behavior promotes neither side's idea of what is "normal."
The notion of exclusivity of "attraction" - that a male may be genetically and sexually attracted ("wired a certain way") solely to females ("hetero") or solely to other males ("homo") is a myth - and one honestly, that is propogated by both sides. While it is true there are men (and women) on both sides whose sexual behavior is exclusive to one gender or the other, such attractions are neither genetic nor exclusive, but more a function of upbringing, whether religious, traditional, societal, familial, or otherwise - again, a lerned behavior, a learned attraction.
Lastly, there's no such thing as a "celibate" homosexual any more than there are "celibate" heterosexuals. It's just bad terminology.
Celibacy is abstinance from sexual behavior. Period. One who is celibate is neither homosexual nor heterosexual; they're celibate, engaging in neither form of sex. One's lusts, like one's behaviors, do not define who one is. Only God can do that (and has).
So yes, again - it is possible for homosexuals to be saved - as it is possible for thieves, murderers, fornicators, covetors, adulterers, angry people, envious people, prideful people, to be saved - anyone who's behavior is defined by their identity in Adam rather than in Christ.