Good verse. Now read it carefully. Note that from this account Peter did not call down God’s wrath. Peter merely spoke truth. Also note, that this was Church discipline, NOT dealing with unbelievers.
In order to match the tone of your post you will have to find us a passage where some Christian called down judgement from God on unbelievers. You might be able to find such a passage, but I am not aware of it.
Christians are not called to call down judgement on this world. That will come later at Christ’s return.
There were people pointing fingers at sinners in the New Testament. They were referred to as Pharisees.