I get what you're saying here, and I think that's one of the great hypocrisies of furries. They're so big into flaunting their fetishes, and showing off their, if you'll excuse the cliche, shitting dick-nipple hermaphroditic gerbil-taurs, and just generally acting like huge sexual deviants.
...until someone actually asks about sex. I love it. Don't ask == FLAUNT IN YOUR FACE. Ask == Sweetness and innocence and purity.
I propose then, that one of the reasons for this, and in fact one of the reasons so many furries are gay males (not counting the 'jailhouse gay' theory), is that furries are afraid of sex. Specifically, normal, missionary-position, heterosexual intercourse.
Think about it. Many, if not most, furries are socially inept, not terribly in-shape or attractive, etc. They have a hard enough time interacting with normal people under normal circumstances; god forbid they ever try to interact with ZOMG A GIRL in a personal and intimate manner (especially a girl who isn't a furry). So, starved for some sort of stimulation, they fall back on the lowest common denominator, ie, themselves. Joe Average Furry knows what sorts of things make himself feel good sexually, so it's more comfortable for him to be intimate with another male who has the same 'plumbing' so to speak. Essentially, he can get the other guy off, and he can be confident the other guy can get him off. Everybody comes, everybody wins...but maybe there's a little shame, because he's not realy gay, he just wanted to get off, and the idea of sex with a woman presents so many foreign concepts (oh god tits and vags and rejection and what's going on!?) that he's too afraid to even pursue it.
Typefucking is easy and tidy and all in the imagination. Drawing a hyperphallic fox thing shooting a gallon-sized load is all visual and no physical, and is, in effect, attractive to furries because it's pure fantasy (hence why humany porn is a no-no). Two bodies bumpin' uglies is hot and sweaty and dirty and smelly and physical and tiring and real. It's a lot harder to pretend you're some noble svelte wolf railing a busty ferret when you're both there in a hotel room panting from exhaustion and praying you'll orgasm before you run out of energy.
Don't get me wrong; I'm not trying to discount normal homosexuality as some sort of fear of women. I've known many gay men both in and out of furry who are well-adjusted individuals, function in normal society, and just happen to be attracted to the same sex. That's great. Gays are cool. But the reasoning and psychology behind it is totally different. I don't want to pull this completely off-topic, so I'll stop there.