There you go again TwoWrights trying to be judge and jury .Telling God what He can do and can’t do with His creation while spitting in His face ,hating Him and rebelling in sinfulness.
God is perfection in Righteousness and Holiness and is entitled to do what He sees fit with evil and rebellious creatures.
The question you want to ask yourself is why God has shown mercy to save anyone ( the answer is to demonstrate His power and Glorify Himself)
God’s command is repent and put your faith in Jesus Christ .
God is rich in mercy to all that bend the knee and worship Him.
