Which is more costly letting them to continue to kill, rape &/destroy property or confining them?
they are continually rehoused. They blow out of it.
They need to be institutionalized and on long term or lifelong holds.
Apparently the current policy is to kill them with neglect as they are used to overcome cities, terrify and kill citizens and provide work and government funds to graft to organizations.
I expect the 1930s German solution to be initiated when leftists are done using them.
Overall the world is a safer place when they are contained. But the libs are never going to go along with that.