The humanitarian crisis ICE/CBP are causing by rapidly deporting immigrants who've not been back to their home countries since they were infants.
For many immigrants they're entire support system is in the US and they don't know/have relatives in their home countries.
In the UK things get even stranger. UK citizens who were deported by the US get zero support from the US or UK.
But immigrants deported by the UK get a stipend to smooth their exit from the UK.