Wow, she packed a lot of lies in there.
First of all, slavery was not going to end in 5 or 10 years. The people running those states had every intention of maintaining chattel slavery forever. They very probably would have succeeded for decades at least, if not even until today, because Lincoln and the fledgling Republican Party didn’t really particularly want to end it, just wanted to reduce its spread.
And the formation of the Confederacy proves that a state’s individual sovereignty wasn’t their concern, as the Confederacy itself made not allowing slavery illegal. And happened after a failed attempt by South Carolina Congressmembers to introduce a bill into law that would force all new territories and states to allow slavery. After so many years of successfully forcing individual states, through federal law, to return escaped slaves to their southern owners.
So fuck every one of this bitch’s bald faced lies.