Sorry, BirfoonBoy, a country may refuse to accept its citizen's renunciation. C.f., Kenya which routinely refuses to approve renunciation of Kenyan citizenship. Also, in the US, renunciation must be approved.<quoted text>you just don't get it!
BirfoonBoy's problem is that I do "get it" and can see through his infantile logic and childish premises.
 "In accordance with Section 358 of the Immigration and Nationality Act, while persons seeking to renounce U.S. citizenship submit the necessary documentation to a U.S. consular officer at a U.S. Foreign Service post abroad, the decision whether to approve the renunciation is made by the Department of State in Washington, D.C. Accordingly, unless and until a certificate of loss of nationality is approved by the U.S. Department of State, the oath of renunciation, even though signed by the individual is not/not legally effective in terminating the person's U.S. citizenship."
Sorry, unless the alien's country of origin agrees to expatriation, the alien's foreign citizenship remains intact. The US cannot revoke foreign citizenship. US law has no force or effect in a foreign country. Similarly, operation of foreign law has no force or effect in the United States.
Play law doesn't count, child.