It is not simply ending birth right citizenship

[DFW]

18. The German socialists of the DDR used exactly that tactic on their own people.

If someone was politically inconvenient, but too visible to be killed outright (I’ve been to the wall where they did that, right near Putin’s former villa in Potsdam, and the bullet holes are still there), they would “cancel” that person’s citizenship, and exile them out of the country, minus their papers. Usually to West Germany, obviously. Believing the myth of their importance, they thought that taking away someone’s material worth would destroy their spiritual worth. Instead, as with famous voices like singer Wolf Biermann or actor Manfred Krug, some of the expelled artists became even more famous after they were kicked out.