Let me ask you something: is it just for us to round up all the sinners who commit sodomy and put them to death? What about adulterers? What about thieves?
The wages of sin are death. We all sin thus we all deserve death. That's why Jesus came and defeated death by rising up from the dead. I'm assuming you've heard of that.
Didn't Jesus say something about casting stones? Or was that someone else ... I can't remember I've never read the Bible according to you.
So we have different views on sins, I believe some are worse than others although of course all are shameful and offensive to God.
There is a scale of offensiveness in sinning, there are the seven mortal sins where if you die without confessing and repenting, having committed one, you go to hell as far as the Catholic Church can tell you. God keeps His covenant but can also extend His mercy to anyone- He's not bound by the rules he gave us to obey, so the final decision is His, but you'd better be sure your spiritual paperwork is in order just as the Church prescribes- don't take any chances before departing this world. The gravity rises to the point of no return which is blaspheming the Holy Spirit, and it's unforgivable- all Christians know this.
To go back to Chopper's point, though he said everything that's needed.
There's no need to kill sinners anymore- after the Crucifixion, you can confess your sins, repent, be forgiven, and start anew with a clean slate as if you were born again, in the AD era the real death penalty is when you reject the Gospel, if you come to Jesus you have life, as long as you keep getting up. With the New Covenant, you're dead only if you don't believe in Jesus- no need to stone adulterous women or kill deviants, there are smaller things nobody has to do anymore, the Apostles ate without unnecessarily washing their hands- for the sake of a ritual- if they were clean, Jesus would hang out with prostitutes and tax collectors, we eat food considered unclean by the Mosaic Law.
In the days of old, it was better to die and face God's judgement, than to continue living and accumulating sins walking this cursed ground- it was a dark place where the power of the devil was much stronger before the coming of Jesus- from the book of Isaiah:
The people who went in darkness saw a great light; where people lived in the country of the shadow of death, the light rose upon them. There was no way to have your sins forgiven while still alive- and even after death you had to wait for the coming of Jesus in Limbo after judgement- is my understanding, you'd make sacrificial offerings to atone for the wrongs you had done, but if you had sunk into homosexuality you were probably too far gone, death being the only escape.
With homosexuality and the other sins that called for capital punishment, the degradation must have been irredeemable and hopeless when you've reached that kind of bottom. Like winning a sinners gala achievement award, a truly depraved state along with the path- the likely sinful lifestyle with no contrition and atonement along the way- that led there.
Another angle is that a relatively small nation out of which the Messiah was to come had to observe God's laws to the tee. It's unimaginable if the Son of God would have been born unto a group of people who tolerated any such abominations. The house must be clean for the greatest of guests to enter.
