Explanation: During the US Civil War, fought over the issue of race-based chattel slavery, the pro-slavery Southern Confederacy attempted to secede from the USA. One of the issues later cited by apologists for the Confederacy was the notion of "states' rights".
... but the Confederacy attempted to invade and take over at least two states which rejected secession - Kentucky and Missouri.
States' rights for me, but not for thee!