The responsibility to overthrow tyranny is literally written into the American and German association founding documents.
DECLARATION OF INDEPENDENCE
"We hold these truths to be self-evident, that all men are created equal, that they are endowed by their Creator with certain unalienable Rights, that among these are Life, Liberty and the pursuit of Happiness.--That to secure these rights, Governments are instituted among Men, deriving their just powers from the consent of the governed, --That whenever any Form of Government becomes destructive of these ends, it is the Right of the People to alter or to abolish it, and to institute new Government, laying its foundation on such principles and organizing its powers in such form, as to them shall seem most likely to effect their Safety and Happiness.
Prudence, indeed, will dictate that Governments long established should not be changed for light and transient causes; and accordingly all experience hath shewn, that mankind are more disposed to suffer, while evils are sufferable, than to right themselves by abolishing the forms to which they are accustomed. But when a long train of abuses and usurpations, pursuing invariably the same Object evinces a design to reduce them under absolute Despotism, it is their right, it is their duty, to throw off such Government, and to provide new Guards for their future security."
And the Constitution allows for States circumventing the Federal government by calling a constitutional convention.
GERMAN BASIC LAW
"Article 20
[Constitutional principles – Right of resistance]
(1) The Federal Republic of Germany is a democratic and social federal state.
(2) All state authority is derived from the people. It shall be exercised by the people through elections and other votes and through specific legislative, executive and judicial bodies.
(3) The legislature shall be bound by the constitutional order, the executive and the judiciary by law and justice.
(4) All Germans shall have the right to resist any person seeking to abolish this constitutional order if no other remedy is available."