The difference is that homosexuality is a whole lifestyle, even a subculture. It has a certain worldview and in the case of those who profess to be Christians in this lifestyle, a way of interpreting the Bible to support that behavior.
Imo, although all sexual sin is sexual immorality and is wrong, the way homosexuality is advancing today as a worldview, culture, and cause separates it from the other sexual sins in that it is more threatening in a broader way.
For example, are there adultery clubs in schools? Or fornication clubs? No, but there are the GLBT clubs. Do kids read books like, "Mommy has a secret lover?" No, but they read about "Heather's Two Mommies."
It's an animal of another stripe.
I am posting my remarks above again from Post 230 or somewhere around there.
Also:
It used to be, "we just want to be able to do what we want in the privacy of our homes."
Then it became, "children need to learn about homosexuality in school so they know about AIDS and can also accept that every sexual practice as okay or else they are prejudiced."
Then it was if you said you thought homosexual relationships were immoral, you were called a "homophobe." This is still true.
Then there came the GLBT clubs in high schools, then in some middle schools.
Now, it's if you deny marriage to same sex couples, you are denying basic rights, and we must accept all forms of sexuality in all areas of society as okay.
Why don't some Christians realize that the purpose here is total acceptance of homosexuality in all areas of society?
It's just a pattern plain as day one can trace from the 80s and continues.
It's much, much more than giving rights - it is definitely that everyone is supposed to go along with it as okay. Not all gay people may be pushing this, but the activists and the ones dealing with political and legal issues are, as well as straight counterparts.