Another somewhat important distinction to note is that ending the right to live here doesn't imply eliminating the possibility to do so. Although they now seem to be ruling out a points-based system, I'm assuming that once you tick certain boxes in some shape or form (and one can reasonably assume people on this board will do so), it will be more or less frictionless to move to and fro.

Whether discriminating against lesser-skilled immigration from poorer countries is a moral thing to do is, of course, a separate subject for discussion.