I have an old copy of the constitution and I’m not up-to-date, please lay out the process by which states may secede. Thanx.
Let's see. Secession is not mentioned. Is there something to address things not mentioned? Ah, there it is.
The powers not delegated to the United States by the Constitution, nor prohibited by it to the States, are reserved to the States respectively, or to the people.
Sorry, that’s not how the constitution works. That document is a grant of powers to a national government. If it’s not in there it’s not granted. The burden is on you to show where it’s granted. Also,read through the thread for a list of states that nevertheless specifically reserved the right to leave.