The classic solution to this problem would have been to sacrifice them to a black hole, preferrably Sgr A*. Nowadays, there's also a certain creepy engineer in Colonia who likes them for his experiments. If that's too far, feed them to the Thargoids. From your description, they had it coming.Oh, an now I am stuck with a pile of occupied rescue pods I cant hand over at the destination.
Regarding Colonia - if you really want to get rid of them without putting too much of a load on your conscience, you could ask in the Fleet Carrier Owner's Discord if anyone is going out to Colonia in the near future and wants to take them along.