Why is it then that homosexuality keeps getting singled out for "special treatment"? There are plenty of Xians that allow sex before marriage yet it appears in Romans (and in plenty of other places) that fornication is equally worthy of death... and thus just as "condemned" as homosexuality. Where's that outrage? Or how about envy? Capitalism would stop dead without that.
And now here is where it gets interesting. The point is that those that were worthy of death were the ones guilty of Rom 1:25 (and not homosexuality). That was not believing in God. So if there are gays looking to worship God, then why is it they should not get the same understanding as anyone else wanting to worship God? Which is forgiveness.
Despite my belief in God and in Christ, I think I'm as condemning of modern Christianity as anyone is. I can't imagine myself cutting the churches and Christians of America much slack on any issue. However, I think your complaint here applies to almost no one. Churches that turn their heads to premarital sex are unlikely to say anything on the homosexuality issue. Churches that are staunchly anti-homosexual are generally also vocally outspoken against pre-marital sex.
As for envy, greed and other such sins, Christianity is pretty watered down nowadays, and America is very, uh...what's the word...shoot, I don't know. What I mean about America is that you have to be "pinned down" before you can be accused of anything. Envy is awful hard to prove, as is greed. Pre-marital sex and homosexual acts are actions, so they can be nailed down as having happened. With envy, greed, and such sins there is always "plausible deniability."