Maybe saying "PC" wasn't best choice. I mean, there's really only so much room in the title bar. Maybe "the emerging, post-modern, relativist lies about homosexuality+life."
I know about homosexuality because I was gay. Now that I've stopped being actively gay, the inclinations are decidedly less intense. This lines up with what the Catholic Church says about the sex drive--it is amenable to reason. I'm not Catholic but they've been around for 2,000 years, so I read their stuff on important issues.
Anyway, for me personally, one great thing about being Christian is confronting Truth. First you realize you're a sinner. Then you ask for forgiveness. Then you start the process of learning about God and Christ.
Thing is...God is Truth. And love. The Holy Spirit, in particular, is said to "lead us into all Truth," or something to that effect. So I do think that for Christians should do what they can to confront Truth.
Romans 1 mentions homosexuality along with a cluster of other sins that occur when individuals and societies reject God. Its a mixture of God-rejection and self-worship than ends in destruction.
As a post/ex-gay man, I think its important for people to know from someone who was there that homosexuality isn't fun. I mean, OK--it had its moments. But all sins do.
I singled homosexuality out because I was gay and because I believed some of the lies that were then more common among more "tolerant" people and have now spread to the masses. The lies that said you can be just as happy gay as straight, that you can find someone and settle down (just like straight people), and that all the previous knowledge about homosexuality was one huge "myth" or rooted in "homophobia" or something. I was 17, and I belived it.
False! So false. Then again, so were the lies I was told about all kinds of things. Divorce, drugs, abortion, "mental health," and Christians. One reason I stay Christian now, for instance, is because when I was at my lowest point--burned out, dull eyed, overweight, hated by my entire small town--it was Christians who tried to reach out to me and get me to see that I needed to change and that God loved me.
I didn't "get it" then, I but I "get it" now. Christians follow Christ. We are also led by the Holy Spirit, who leads us to Truth. Part of being a Christian, for me at least, is taking a stand for Truth in a culture that seems hell bent on creating all sorts of self-serving, ultimately destructive lies to justify all sorts of immoral behavior.