I don’t believe the Bible calls it the Second Coming. What I see is that the Bible describes Jesus taking the Christians (alive and dead) up to be with him in Heaven.
And then it describes Jesus as setting up His Kingdom, over all the nations on earth.
It’s as simple as two descriptions for two different things that Jesus is doing. You don’t even have to invoke the human language of “Second Coming” — just the Bible’s language of “what Jesus does” — no more and no less ... :-) ...
Then what would you call it when the Bible speaks of the coming of Yeshua? When Yeshua comes back to claim His church and they meet him in the air, Yeshua keeps coming to Earth. He doesn’t go back with them then return yet again. The Bible speaks only of two instances when Yeshua is on Earth; first time as the Suffering Messiah, the second time as the Conquering Messiah.