It's brilliant, actually. Pay them while they are back home. Eventually they will all be back home getting paid and you can cut them off. They will have left voluntarily and you will have rid your country of them without firing a shot!
What politics from both sides wants to teach us is that things are never complex. If you have your little package and something doesn't fit into that package, You don't know what to make of it so you want to dismiss it or then you will have to do the work of reconsidering your assumptions. - Michael Malice