Arcadia
Aldrich mulled over what the entity had said. It was either shepherd humanity to outer space or suffer the wrath of the titans. Both options were bad, to say the least.
The nearest habitable planet was light years away. Despite the diverse spectrum of fantastical powers that the Alter Organs granted, the physics constant remained that nobody could surpass the speed of light. And nobody could warp themselves away to those kinds of distances.
Not to mention the fact that without ether in earth's atmosphere, all Alters would run out of energy to fuel their powers and advanced technology. Humanity had gotten so reliant on ether that it was impossible to tear them away from it. Some mutants might even just flat out die without an ether supported environment.