Yes, and a counter to the argument that the Union was inviolable versus states joining voluntarily. It might be convenient to only look at one aspect of a matter, but that only holds so long as the view agrees with the outcome you would like to happen.

The arguments around states, federalism, The Union (it wasn’t called the union for no reason): they matter. And it might be that you might find a limited interpretation around what actually happened during that time inconvenient in the future.