...and don't give me this "he's going to Hell, it says so it the Bible" nonsense.
I don't believe the Bible is nonsense, but if by hell you mean a place of eternal torment, you are right. Sinners die. Nothing more, nothing less.
Biblically, it is a sin. Practically, he's no worse a sinner than you or I. But what's sad is that perfectly reasonable people like yourself don't recognize it as being wrong.
Like it or not, we are here for more than just the fullfillment of our sexual fantasies. One day everyone will be made aware of this.