Okay, I see your point. But one needs to realize that Paul has summarized a much larger picture. The summary is a bit misleading if one is not aware of the bigger picture.
If I should say, "I looked out the window and saw a boat floating up the street," this might seem a bit strange. But what if I said, "We are in the middle of a hurricane, and when I looked out the window, I saw a boat floating up the street." The larger context informs my earlier sentence.
Jesus will be revealed from heaven. And he will be accompanied by angels. And some of those "angels" are the fire itself. And the fire will incinerate God's enemies. All of that is true.
Now, Paul's statements are informed by the bigger picture, which is found in the prophets. One of those prophets is Malachi, where the Lord says that he will incinerate the arrogantly evil among those living in Israel, and those who fear the Lord will walk on their ashes. Malachi 4.
From this passage we understand that the Second Advent is not coming with a total destruction of the earth. Rather, the fires that accompany the Lord's return are regional fires, located in the land of Palestine, and according to the prophets, God sends the fires in order to purify the land from wickedness.