The issue at hand here is that very few have a Biblical understanding of what God says about judging and how it is to be done.
As is consistent with the majority, I'm seeing that several of you are unaware that you can't make a decision without judging, and that God calls for the spiritual man to righteously judge all things.
The OP made a judgment when the original question was asked.
Halo, you made a judgment when you deduced for yourself the thing that you find most judging.
In accordance with God's Word, if you are in a relationship and having sex outside of God's marriage covenant, your acts are sin. And no its not an issue of you not legally being able to marry because God has also said who a marriage is between.
And though you guys may not like, it is the way it is because GOD says so.
You can reject that and start all the arguments about us not knowing what God says, etc. Fornication is sin and if you are fornicating , expect it to be identified as sin.
As Christians, we make that judgment with every person we meet if we do not know they are a Christian. If I meet you on the street and I don't know you're a Christian, I'm going to make the judgment that you're not and attempt to share the Gospel with you until we can establish that you are or not or until you run me off.
My point is that people have to judge. The issue is whether or not you're doing so righteously or hypocritically.