Help ensure the economic stability of the new nation
In political systems that allow and protect this right, the system is able to be altered by the people if they think that it should be. This means that if they disagree with something, they are able to petition it without being harassed or arrested. This can change the political system if the system gets to where the people don’t have rights and they will try and change that.
I would most possibly do the same thing, or take the south back to US as brothers, but I might also add a little punishment. The punishment would be limited import for a period of years (1, or 5). I would also not allow them to vote or participate in any political meeting, congressional decisions, etc.
Hope this helps, you might have a different opinion however, but as I think, it would be better to punish them for
1. Not obeying the rules (still having slavery)
2. Electing a secondary president.
3. Helping the war happen.
4. Trying to become independent from the rest of US.
Answer:
Prohibiting slavery in the territories.
Explanation:
According to the ruling it was decided that Congress had exceeded their authority when ratifying the Missouri Compromise, and therefore "had no power to forbid or abolish slavery in the territories west of Missouri and north of latitude 36°30" (Britannica.com).