“All contracts have two or more parties. If the contract doesn’t specify, then all the parties have to agree to end it, just like all the parties had to agree to the contract in the first place. Basic law, which is based on basic common sense.”
Kind of like the Mafia.
Have you ever actually studied law? If a contract doesn't specify its termination conditions and has no apparent implied termination conditions then it is an "at will" contract and either party may terminate it at will. Haven't you ever been employed? That is a contract but one doesn't need the employer's permission to end it.
Yeah but oneside does not get to change the contract however it wishes, like is happening now and was happening then.
FReeper SeeSharp's demurrer aside, I would add in reply that the Constitution does specify that fewer than 13 States were needed to ratify and put into operation the original Constitutional Union, which was a change from the 100% agreement required to amend by the original Articles of Confederation.
Only nine States were needed to ratify the Constitution, voiding the operation of your principle from the outset.
In addition, there are sovereignty considerations that "raise the game" above contract law, at the State and international levels.