Going to work in the Future, I drive back an Aerospace Carrier

Xiao Donglin was unemployed and looking for a job, a message suddenly appeared asking him if he would like to work in the future.
Xiao Donglin thought someone was joking, so he agreed.
As a result, a halo of light flashed in front of his eyes, and he really went three thousand years later and became the head of the waste recycling station.
“…Anti-gravity boilers, laser cannons, proton reactors, shady plasma generators, mechs, space carriers…”
Seeing these waste products, Xiao Donglin was stunned. He thought, can these waste products be recycled into his own time and space?
Then he drove an space carrier back.
“Alien invasion.”
“Humanity is finished.”
“I can give birth to monkeys for aliens.”
On the other side, the country received a message: “The space carrier requests to land.”
“approve.”