I think it’s awful, it’s awful for them to be hurt. You don’t hurt someone who struggles with sexual sins such as premarital sex. (Especially not if they’re male, they’re sadly even praised for that! Disgusting!)
They should be welcomed with open arms, yes. You’re a sinner, we all are. Let God embrace you, let him help you with your burdens, you can be free of sin.
The hardest part of this path will be to recognize that homosexuality is a sin.
Don’t be alarmed; all of us are sinners. All of us have had our spirit broken and then rebuilt stronger through Christ’s love.
Let him build you up from the bottom, let him show you that he can break your chains.
It’s going to be a hard road, but the life of grace is far better than a life of sin.
God will not lead you into temptation. He keeps his promises.