I wasn’t aware that the state can revoke any citizenship once granted. Can you provide a link to support that? Thanks.
Yes, any statutory citizenship can be revoked. Only Natural Born citizenship is entirely free of risk of revocation since it does not depend on statute law.
I think it would be extraordinarily hard to revoke any form of citizenship short of Natural Born that attached at birth, especially if the birth took place in the Unties States itself, due to the misapplication of the 14th Amendment that has fossilised now. But there used to be some defined ways that birthright citizenship for children born abroad could be lost. Some of them might have been repealed, but what can be repealed can be re-enacted.
Of course, traditional naturalizations can be revoked for any number of causes, including fraudulent acquiring.
I don’t have time to research the legal references. Why don’t you try the link in one of the posts above which leads to some very interesting discussion at the Supreme Court about just these issues. I will tell you that even Supreme Court justices evidence considerable confusion on these issues.