I live in Missouri. Missouri applied to the Federal government for Statehood in 1818. Missouri was admitted as a State by an Act of Congress in 1821. What do you mean by the assertion that a State may remove itself from the Union by seceding from it, by the same mechanism by which it entered the Union? If it were by "the same mechanism", would that not also require an Act of Congress to remove the Statehood of Missouri?
Cordially,
See post #79
I was referring to the original States that formed the Union.
States organized by their inhabitants later on and admitted to the Union, under Article IV (q.v.), come into the same status as the original States by the act of admission. Therefore Missouri, although organized later and admitted by the Congress, becomes as a new State the peer and equal of every other State, with all the powers and sovereignty of the original 13, including the reserved powers that the original 13 retained at ratification.
Net-net, Missourians receive an accession of power and sovereignty that they didn't have before, as territorials and U.S. nationals living in a territory. That they receive it from the Union does not mean that they are creatures of, and subordinate to, the earlier States or the federal government. They enter the Union as new peers -- not on their knees as supplicants and clients.
Adolf Hitler was of the opinion that our States were creatures of the U.S. Government and therefore its thralls. But then he never did know or care much about the power that compassed his destruction.