Shoot them and dump them in the fjord
That’s cruel.
They should give them free train rides to wherever they want to go, but they have to ride on top of the trains.
That would be perfectly safe, there are plenty of hand holds up there for them.
I saw a movie once where a Jew desperately wanted to become a doctor and heard there was Muslim school of medicine taught by one of the best practitioners in the world. He got in and during an epidemic of the plague in the city, this student with the doctor’s help discovered the cause - fleas infesting the local rat supply.
The cure? Poison the rats’ food supply and burn the rats and the fleas. Problem quickly solved.
When you are infested with rats and fleas, drastic methods are needed.