Jail? They should instead be thrown into the sea with a millstone around their neck.
If they do not repent, the judgment they will face from Almighty God will be more harsh than can be imagined.
Sin angers Him on general principle but this sin is especially hateful to Him and is expressly singled out for an exceptionally severe judgment.
Prov. 6; Matt. 18:2 and Luke 17:2
Sorry, it is Matt. 18:6.