No. “In my house there are many mansions...” Plenty of room for aliens.
It would just mean that the Genesis was more incomprehensibly vast than we could imagine...
Before there was a universe, God created the angels. He created the angels and the universe, Lucifer was the “anointed cherub,” chief of the angels, Ezek. 28, and as such placed upon planet earth. The earth, not some planet in another solar system or galaxy, was Lucifer’s kingdom - which is why he is called “the prince of this world,” John 12:31, 14:30, 16:11, and 2 Cor. 4:4.
But Lucifer didn’t like being under subjection to God, he wanted to be number one, he became lifted up in pride and God demoted him, Isa. 14, giving him the name Satan, meaning God’s adversary.
Which is why you find him already there in the garden of Eden, he is there because he is the prince of this world, planet earth was his domain, he looked at Adam and Eve, whom God has given planet earth as their’s to rule, as intruders into his domain, and deceives Eve bringing their expulsion from the garden.
Now, there is nothing more lowly than a snake, slithering along on the ground, and that is precisely what God did to Satan, this prideful creature who said, “I will be like the most high, Isa. 14:14. God cursed him.
So we end up with man losing his rulership position of planet earth, cast out of the garden as sinners, but with Satan still in possession of it.
What does all this tell us? That the great drama of the universe is terra-specific, planet earth-specific. Not the Mormon planet Kolob, nor any other planet anywhere else. God has chosen THIS planet in THIS solar system, in THIS galaxy, for the great drama of redemption. It also tells us that it is only the Bible that has the answer to all this ET nonsense.
Not mine. If anything, it’d be further proof of my Faith.
A man was walking his dog and his dog dropped some heavy timber, as the man was bent down scooping up the dog poop he saw an alien ship land. The aliens, seeing the man scooping up the poop walked up to the dog and said “Take us to your leader ...”
Where are they? —Enrico Fermi