If you follow the same logic that the Catholic Church uses towards homosexuals, then I guess the United States Government doesn't have anything against rapists, murderers, and pedophiles. "We just punish the behavior, those individuals shouldn't feel discouraged from being a rapist, a murderer, or a pedophile."
With what we see today, I think that that last statement is particularly obvious, don't you?
After all, there is NAMBLA...
I kid (to a degree), but in all seriousness, the US Government is the authority of the land, whereas the Catholic Church is not. Saying that because they have the same purpose (telling people how to live their lives), they have to operate under the same lines of logic isn't right. It'd be like saying that the NSA and CIA have to operate under the same lines of logic as the FBI or the Armed Forces, since they're all organizations that protect our freedom and our country, when the truth is is that while they've got the same overall purpose, they approach it in very different ways, and thus need to follow different paths.
The whole notion of behavioral correction through operant conditioning is changing someone by associating the behavior that you want to eliminate with negative outcomes. Associating homosexuality with sin is not some harmless difference of opinion; it's an attempt at using the concept of sin to shame people away from being homosexual.
And yet, for a long time, it worked - people hid in the closet for years about being gay, especially if they were Christian. Whereas the prison system we've got today doesn't work at all at rehabilitation or at prevention - felons get released back out onto the street and go right back into crime, for one of two reasons IMO.
1: They know that there's no 'normal' job that will hire them. Having a felony conviction on your background check is a death sentence to most forms of employment, particularly if it's drugs, rape, or murder.
2: There's too much money involved. After all, why go and get a job flipping burgers at seven dollars an hour when you can sell drugs on the street for dozens if not hundreds of dollars a pop, and all you have to do is avoid the authorities?
The ultimate problem is that there really isn't
anything, secular or religious, that seems to consistently work these days to promote a well-adjusted and moral society. And in that sense, both the RCC and the USG are in trouble.