The bible lays out what things are sin. We don't get to pick and choose. Jesus reconciled all things in his death and resurrection. So all sin is forgiven, regardless of what it is through Christ Jesus. There is only one sin that is unforgiveable, but it would take hundreds of words to explain it, homosexuality though is not that sin, neither is murder. We go to hell because of one sin and only one sin, that is unbelief in Jesus. Once a person accepts Christ, their human spirit is born again, actually it is regenerated once again alive to God the Father.
The sins and penalties for sin are all forgiven through Jesus' death on the cross. Man is no longer bound to punish sin as in the old covenant, example stoning somene for adultery. But even though our sins are forgiven, we have a part to play in that we have to turn away from those things that are sin. Whether it be adultery, homosexuality, stealing, violence, and etc. We gather the strength to resist those sins in Christ through reading the bible, gathering with other believers like going to church, and prayer. A lot of prayer. People blame God, misquote the bible, and never read it which causes people to believe things that are not true.
Now if you think God doesn't exist or you don't believe something is wrong, then that is your decision. I can't defend some of the outlandish behavior of folks who do things in the name of God. But blaming him for what someone else does is pretty stupid. I am no more responsible for the actions of my grown daughter, then God is for mine.