Many people claim to be repulsed by homosexuality. I think they are in a quite small minority, smaller than they might think.
Consider pornography. It is a huge industry. I think it is fair to say that the number of men who indulge in pornography dwarfs the number of men who specifically avoid it.
Most pornography includes at least one scene or set of images involving lesbians.
Now, these depictions by and large tend not to reflect authentic lesbian sexuality (whatever that may be–surely a subject for a thread of its own), but these are nevertheless by definition homosexual images. So we may deduce from this that the concept of homosexuality itself is not nearly as offensive an issue as is commonly advertised.
The issue seems to be more specifically with male homosexuality, particularly anal sex.
First, I would point out that a substantial minority of hetero couples enjoy this.
Next, I would point to Masters and Johnson (could they have more appropriate names?) in defining erogenous zones as having over a certain amount of nerve endings, thus including nipples, earlobes, fingertips, etc. The anus certainly qualifies under these specifications.
"But sht comes out of the anus," the opposed will say. Very true, but pss comes out of the penis, and menstrual waste comes out of the vagina. How disgusting is that? (irony)
“But if we accept this, pederasty and bestiality are not far behind,” they may say.
Sex with underage people of whatever sex is covered under statutory rape laws. Sex with animals is covered under cruelty to animals laws. These are not likely to be overturned no matter how liberal the justices in question may be.
I’m a a straight guy, but come on. Let’s be real about homosexuality.