Unfortunately due to the precedent of citizenship revocation we now have this situation where they aren’t citizens of any country. Or one where we can’t deport to face a capital crime (tbh I really don’t give a toss for that exemption to deportation for the crime described in someone else’s post re the Malaysian - but it should be up to non politicians to examine and decide, not the clueless ones in parliament.)
Non-deportation because of the threat of the death penalty would be a different issue IMO.
The politicians should write the laws, and the public servants should administer and apply the law without fear or favour.