Huntster:
I haven't searched the RCC websites, but I doubt sins like murder, theft, or rape are described in those terms. I believe such sins are considered mortal sins:
Seems then homosexuality (or murder, or missing Mass

) is only a mortal sin if the homosexual thinks it’s a sin? Kismet!
I'd say the the RCC wording of "grave depravity" can be taken to mean "serious degrading." And I would agree.
Okay.
Let me get to what seems, to me, the heart of this matter then, and I’ll be specific to the RCC this time. I’d like to know if and where you’d disagree.
[Man, this got way too long (Dave knows the trouble

); I wouldn’t feel bad if you just skip it but it’s my attempt to explain some of the response you’re getting]
I think the Catholic church is hostile to homosexuals,
all the people who are attracted only to a sex they happen to also be, not only the people involved in so-called homosexual acts. Not that they all hate homosexuals or that all Catholics are bigots (though some certainly do and are, as in any group). Many of them are even hostile certain it’s for the homosexual’s own good.
I think the RCC doctrine is hostile because asking a person to live a life of celibacy or a life that involves sex with a sex, male or female, they find repelling and unnatural when they certainly aren’t wanting that, hurts that person. Teaching them one of the most important, deep, and instinctual routs to happiness in their life is immoral harms them as well. It limits them and opposes their nature (But that isn’t always a bad thing).
It doesn’t matter even if the RCC saw such things as the least depraved of sins; there’s a minimum of harm done to a person in the moral classification of something they derive such joy from on the evil side. Though, sure, the intensity of the “asking” of people to refrain from such acts can raise the harm from its minimum substantially; gays certainly don’t want the loving and just discrimination of the inquisition days again.
I hope it’s clear that such a moral declaration would hurt any person, straight or gay, as in my example of a gay father teaching his heterosexual son that heterosexual sex and couplings are immoral. That would hurt the kid, right?
Lastly, I think it’s problematic for a Catholic to resist characterizing the RCC doctrine as hostile to homosexuals. There are many more people, and I think you’d agree, the RCC’s doctrine is hostile towards and near everyone is fine with it. Kleptomaniacs, for a minor example; the RCC asks them to resist an urge they experience and to refrain from something that gives them pleasure. The church feels love and respect for their humanity, but they still oppose and cause them a pain that would not be there if the RCC just said, “Okay, theft is now moral.”
Of course, to us both, the RCC is rightly hostile in that instance, and we both think the Kleptomaniac should live a “celibate” life, never stealing from another. I am, in fact, openly hostile to Kleptomaniacs in that way, even though an aunt I love is one. I’m sure it hurts her to know what family thinks of her, but I’m not going to change or deny it.
Clearly though, on this one, you and I hold different morals, and I don’t expect to change your mind on homosexuality anymore than you could change mine on left-handedness

. Still, I can’t imagine why a Catholic would hesitate in saying their church is hostile to homosexuals, unless they fear retaliation or actually do see a problem with calling the results of the defining drive of a homosexual a sin.
I’m just tired of cushioning, focusing on love of the sinner, and talking about resisting “unjust” discrimination against them, and then avoiding the fact real harm and pain is caused in the homosexual. I’ve seen it too many times, and for many kids it can be devastating. Just don’t pretend it’s not real.
Actually, you probably don’t. You said it yourself in some different phrasing I think; telling some people the RCC version of truth feels “like hell” to them. It feels horrible to be put in such a position, just as it would for, say, a kid drawn to Catholicism in the face of the version of truth presented by their strict Muslim household.
But, back on topic, I just want to be clear. This hostility is what causes your opposition to use words like hate. For reasons such as the fact that the religion calls a sexual orientation noble, natural, and God-given for one person and calls the same orientation a certain temptation for depravity when it occurs in another, claims of bias, and bigotry are made. Even though the intensity and even intent may be lacking in your mind, to the extent that such words are not accurate, it’s not easy to tell the difference.
Also, the fact that this fight initiates in the RCC makes the positions of the RCC and the pro-SSM movement nonsymmetrical. The fact that Group A attacks Group B’s because their beliefs cause Group B to attack Group A first, does not make the two groups equally hostile; one is responding to the other.
It’s these issues that create your opposition, and the “Catholic haters”, and if you hold faith in the RCC, fine, but the reaction and strong opposition to their doctrin is inevitable, as we see here.